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-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## 任务：京东用户购买意向预测"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### 故事背景：\n",
-    "京东作为中国最大的自营式电商，在保持高速发展的同时，沉淀了数亿的忠实用户，积累了海量的真实数据。如何从历史数据中找出规律，去预测用户未来的购买需求，让最合适的商品遇见最需要的人，是大数据应用在精准营销中的关键问题，也是所有电商平台在做智能化升级时所需要的核心技术。\n",
-    "\n",
-    "以京东商城真实的用户、商品和行为数据（脱敏后）为基础，通过数据挖掘的技术和机器学习的算法，构建用户购买商品的预测模型，输出高潜用户和目标商品的匹配结果，为精准营销提供高质量的目标群体。"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### 目标：\n",
-    "使用京东多个品类下商品的历史销售数据，构建算法模型，预测用户在未来5天内，对某个目标品类下商品的购买意向。"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### 数据集：\n",
-    "这里涉及到的数据集是京东的数据集:\n",
-    "\n",
-    "* JData_User.csv 用户数据集 105,321个用户\n",
-    "* JData_Comment.csv 商品评论 558,552条记录\n",
-    "* JData_Product.csv 预测商品集合 24,187条记录\n",
-    "* JData_Action_201602.csv 2月份行为交互记录 11,485,424条记录\n",
-    "* JData_Action_201603.csv 3月份行为交互记录 25,916,378条记录\n",
-    "* JData_Action_201604.csv 4月份行为交互记录 13,199,934条记录"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "**JData_User.csv用户数据**\n",
-    "\n",
-    "|字段|意义|备注|\n",
-    "|-|-|-|\n",
-    "|user_id|用户id|脱敏|\n",
-    "|age|年龄|-1表未知|\n",
-    "|sex|性别|0男，1女，2未知|\n",
-    "|user_lv_cd|用户等级|级别枚举，越高级别越大|\n",
-    "|user_reg_tm|用户注册日期|粒度到天|"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "**JData_Comment.csv评论数据**\n",
-    "\n",
-    "|字段|意义|备注|\n",
-    "|-|-|-|\n",
-    "|dt|截止时间|天，到2016-02-01|\n",
-    "|sku_id|商品编号|脱敏|\n",
-    "|comment_num|累积评论数分段|0表示无评论，1表是1条，2表示2-10条，3表示11-50条，4表示大于50条|\n",
-    "|has_bad_comment|是否有差评|0表示无，1表示有|\n",
-    "|bad_comment_rate|差评率|差评数占总评论数的比率|"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "**JData_Product.csv商品数据**\n",
-    "\n",
-    "|字段|意义|备注|\n",
-    "|-|-|-|\n",
-    "|sku_id|商品编号|脱敏|\n",
-    "|a1|属性1|枚举，-1表未知|\n",
-    "|a2|属性2|枚举，-1表未知|\n",
-    "|a3|属性3|枚举，-1表未知|\n",
-    "|cate|品牌ID|脱敏|\n",
-    "|brand|品牌ID|脱敏|"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "**JData_Action_xx.csv商品数据**\n",
-    "\n",
-    "|字段|意义|备注|\n",
-    "|-|-|-|\n",
-    "|user_id|用户ID|脱敏|\n",
-    "|sku_id|商品编号|脱敏|\n",
-    "|time|行为时间||\n",
-    "|model_id|点击板块的编号|脱敏|\n",
-    "|type|行为类型|1.浏览商品详情页;2.加入购物车;3.购物车删除;4.下单;5.关注;6.点击;|\n",
-    "|cate|品牌ID|脱敏|\n",
-    "|brand|品牌ID|脱敏|"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### 数据挖掘流程：\n",
-    "（一）.数据清洗\n",
-    "1. 数据集完整性验证\n",
-    "2. 数据集中是否存在缺失值\n",
-    "3. 数据集中各特征数值应该如何处理\n",
-    "4. 哪些数据是我们想要的，哪些是可以过滤掉的\n",
-    "5. 将有价值数据信息做成新的数据源\n",
-    "6. 去除无行为交互的商品和用户\n",
-    "7. 去掉浏览量很大而购买量很少的用户(惰性用户或爬虫用户)\n",
-    "\n",
-    "（二）.数据理解与分析\n",
-    "1. 掌握各个特征的含义\n",
-    "2. 观察数据有哪些特点，是否可利用来建模\n",
-    "3. 可视化展示便于分析\n",
-    "4. 用户的购买意向是否随着时间等因素变化\n",
-    "（三）.特征提取\n",
-    "1. 基于清洗后的数据集哪些特征是有价值\n",
-    "2. 分别对用户与商品以及其之间构成的行为进行特征提取\n",
-    "3. 行为因素中哪些是核心？如何提取？\n",
-    "4. 瞬时行为特征or累计行为特征？\n",
-    "\n",
-    "（四）.模型建立\n",
-    "1. 使用机器学习算法进行预测\n",
-    "2. 参数设置与调节\n",
-    "3. 数据集切分"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### 数据集完整性验证\n",
-    "首先检查JData_User中的用户和JData_Dction中的用户是否一致，保证行为数据中锁产生的行为均由用户数据中的用户产生。\n",
-    "\n",
-    "思路：利用pd.Merge连接sku和Action中的sku，观测Action中的数据是否减少Example："
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 1,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "  sku  data\n",
-      "0   a     1\n",
-      "1   a     1\n",
-      "2   c     3\n"
-     ]
-    }
-   ],
-   "source": [
-    "# 测试方法\n",
-    "import pandas as pd\n",
-    "df1 = pd.DataFrame({'sku':['a','a','e','c'], 'data':[1,1,2,3]})\n",
-    "df2 = pd.DataFrame({'sku':['a','b','c']})\n",
-    "print(pd.merge(df1,df2))"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "结果只会打印两者共有的部分"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 2,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Is action of Feb. from User file?  True\n",
-      "Is action of Mar. from User file?  True\n",
-      "Is action of Apr. from User file?  True\n"
-     ]
-    }
-   ],
-   "source": [
-    "#数据集验证\n",
-    "def user_action_check():\n",
-    "    df_user = pd.read_csv('data/JData_User.csv',encoding='gbk')\n",
-    "    df_sku = df_user.loc[:,'user_id'].to_frame()\n",
-    "    df_month2 = pd.read_csv('data/JData_Action_201602.csv',encoding='gbk')\n",
-    "    # pd.merge(df_sku,df_month2) 会以user_id字段为基准取两个df的交集 不是取并集，这样才能证明 action中的userid 都在df_user里面\n",
-    "    print ('Is action of Feb. from User file? ', len(df_month2) == len(pd.merge(df_sku,df_month2))) \n",
-    "    df_month3 = pd.read_csv('data/JData_Action_201603.csv',encoding='gbk')\n",
-    "    print ('Is action of Mar. from User file? ', len(df_month3) == len(pd.merge(df_sku,df_month3)))\n",
-    "    df_month4 = pd.read_csv('data/JData_Action_201604.csv',encoding='gbk')\n",
-    "    print ('Is action of Apr. from User file? ', len(df_month4) == len(pd.merge(df_sku,df_month4)))\n",
-    "\n",
-    "user_action_check() "
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "结论：User数据集中的用户和交互行为数据集中的用户完全一致\n",
-    "\n",
-    "根据merge前后的数据量对，能保障Action中的用户ID是User中的ID的子集"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### 检查是否有重复记录\n",
-    "除去各个数据文件中完全重复的记录,可能解释是重复数据是有意义的，比如用户同时购买多件商品，同时添加多个数量的商品到购物车等…"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 3,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "#重复数据\n",
-    "def deduplicate(filepath, filename, newpath):\n",
-    "    df_file = pd.read_csv(filepath,encoding='gbk')       \n",
-    "    before = df_file.shape[0]\n",
-    "    df_file.drop_duplicates(inplace=True) # 列相同认为是重复 inplace=True表示在原来的DataFrame上删除重复项4\n",
-    "    after = df_file.shape[0]\n",
-    "    n_dup = before-after  # 查看前后差值\n",
-    "    print ('Number of duplicate records for ' + filename + ' is: ' + str(n_dup))\n",
-    "    if n_dup != 0:\n",
-    "        df_file.to_csv(newpath, index=None)\n",
-    "    else:\n",
-    "        print ('Number duplicate records in ' + filename)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 4,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Number of duplicate records for Feb. action is: 2756093\n",
-      "Number of duplicate records for Mar. action is: 7085038\n",
-      "Number of duplicate records for Feb. action is: 3672710\n",
-      "Number of duplicate records for Comment is: 0\n",
-      "Number duplicate records in Comment\n",
-      "Number of duplicate records for Product is: 0\n",
-      "Number duplicate records in Product\n",
-      "Number of duplicate records for User is: 0\n",
-      "Number duplicate records in User\n"
-     ]
-    }
-   ],
-   "source": [
-    "deduplicate('data/JData_Action_201602.csv', 'Feb. action', 'data/JData_Action_201602_dedup.csv')\n",
-    "deduplicate('data/JData_Action_201603.csv', 'Mar. action', 'data/JData_Action_201603_dedup.csv')\n",
-    "deduplicate('data/JData_Action_201604.csv', 'Feb. action', 'data/JData_Action_201604_dedup.csv')\n",
-    "deduplicate('data/JData_Comment.csv', 'Comment', 'data/JData_Comment_dedup.csv')\n",
-    "deduplicate('data/JData_Product.csv', 'Product', 'data/JData_Product_dedup.csv')\n",
-    "deduplicate('data/JData_User.csv', 'User', 'data/JData_User_dedup.csv')"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 6,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
-       "        vertical-align: top;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>user_id</th>\n",
-       "      <th>sku_id</th>\n",
-       "      <th>time</th>\n",
-       "      <th>model_id</th>\n",
-       "      <th>cate</th>\n",
-       "      <th>brand</th>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>type</th>\n",
-       "      <th></th>\n",
-       "      <th></th>\n",
-       "      <th></th>\n",
-       "      <th></th>\n",
-       "      <th></th>\n",
-       "      <th></th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>1</th>\n",
-       "      <td>2176378</td>\n",
-       "      <td>2176378</td>\n",
-       "      <td>2176378</td>\n",
-       "      <td>0</td>\n",
-       "      <td>2176378</td>\n",
-       "      <td>2176378</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>2</th>\n",
-       "      <td>636</td>\n",
-       "      <td>636</td>\n",
-       "      <td>636</td>\n",
-       "      <td>0</td>\n",
-       "      <td>636</td>\n",
-       "      <td>636</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>3</th>\n",
-       "      <td>1464</td>\n",
-       "      <td>1464</td>\n",
-       "      <td>1464</td>\n",
-       "      <td>0</td>\n",
-       "      <td>1464</td>\n",
-       "      <td>1464</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>37</td>\n",
-       "      <td>37</td>\n",
-       "      <td>37</td>\n",
-       "      <td>0</td>\n",
-       "      <td>37</td>\n",
-       "      <td>37</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>5</th>\n",
-       "      <td>1981</td>\n",
-       "      <td>1981</td>\n",
-       "      <td>1981</td>\n",
-       "      <td>0</td>\n",
-       "      <td>1981</td>\n",
-       "      <td>1981</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>6</th>\n",
-       "      <td>575597</td>\n",
-       "      <td>575597</td>\n",
-       "      <td>575597</td>\n",
-       "      <td>545054</td>\n",
-       "      <td>575597</td>\n",
-       "      <td>575597</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "      user_id   sku_id     time  model_id     cate    brand\n",
-       "type                                                       \n",
-       "1     2176378  2176378  2176378         0  2176378  2176378\n",
-       "2         636      636      636         0      636      636\n",
-       "3        1464     1464     1464         0     1464     1464\n",
-       "4          37       37       37         0       37       37\n",
-       "5        1981     1981     1981         0     1981     1981\n",
-       "6      575597   575597   575597    545054   575597   575597"
-      ]
-     },
-     "execution_count": 6,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "# 查看重复数据\n",
-    "df_month2 = pd.read_csv('data/JData_Action_201602.csv',encoding='gbk')\n",
-    "IsDuplicated = df_month2.duplicated()\n",
-    "df_d = df_month2[IsDuplicated]\n",
-    "df_d.groupby('type').count()  # 发现重复数据大多数都是由于浏览（1），或者点击(6)产生"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### 检查是否存在注册时间在2016年-4月-15号之后的用户\n",
-    "统计的是4月15号前的客户行为，不应该包含4月15号后的注册客户。"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 7,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
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-       "\n",
-       "    .dataframe tbody tr th {\n",
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-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>user_id</th>\n",
-       "      <th>age</th>\n",
-       "      <th>sex</th>\n",
-       "      <th>user_lv_cd</th>\n",
-       "      <th>user_reg_tm</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>7457</th>\n",
-       "      <td>207458</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7463</th>\n",
-       "      <td>207464</td>\n",
-       "      <td>26-35岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>2</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7467</th>\n",
-       "      <td>207468</td>\n",
-       "      <td>36-45岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>3</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7472</th>\n",
-       "      <td>207473</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7482</th>\n",
-       "      <td>207483</td>\n",
-       "      <td>26-35岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>3</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7492</th>\n",
-       "      <td>207493</td>\n",
-       "      <td>16-25岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>3</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7493</th>\n",
-       "      <td>207494</td>\n",
-       "      <td>16-25岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>3</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7503</th>\n",
-       "      <td>207504</td>\n",
-       "      <td>16-25岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>4</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7510</th>\n",
-       "      <td>207511</td>\n",
-       "      <td>46-55岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>5</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7512</th>\n",
-       "      <td>207513</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7518</th>\n",
-       "      <td>207519</td>\n",
-       "      <td>26-35岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>2</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7521</th>\n",
-       "      <td>207522</td>\n",
-       "      <td>26-35岁</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>3</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7525</th>\n",
-       "      <td>207526</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>3</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7533</th>\n",
-       "      <td>207534</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7543</th>\n",
-       "      <td>207544</td>\n",
-       "      <td>26-35岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>3</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7544</th>\n",
-       "      <td>207545</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7551</th>\n",
-       "      <td>207552</td>\n",
-       "      <td>26-35岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>3</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7553</th>\n",
-       "      <td>207554</td>\n",
-       "      <td>16-25岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>4</td>\n",
-       "      <td>2016-04-15</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>8545</th>\n",
-       "      <td>208546</td>\n",
-       "      <td>16-25岁</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>2</td>\n",
-       "      <td>2016-04-29</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>9394</th>\n",
-       "      <td>209395</td>\n",
-       "      <td>16-25岁</td>\n",
-       "      <td>1.0</td>\n",
-       "      <td>2</td>\n",
-       "      <td>2016-05-11</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>10362</th>\n",
-       "      <td>210363</td>\n",
-       "      <td>56岁以上</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>2</td>\n",
-       "      <td>2016-05-24</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>10367</th>\n",
-       "      <td>210368</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2016-05-24</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>11019</th>\n",
-       "      <td>211020</td>\n",
-       "      <td>36-45岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>3</td>\n",
-       "      <td>2016-06-06</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>12014</th>\n",
-       "      <td>212015</td>\n",
-       "      <td>36-45岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>2</td>\n",
-       "      <td>2016-07-05</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>13850</th>\n",
-       "      <td>213851</td>\n",
-       "      <td>26-35岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>3</td>\n",
-       "      <td>2016-09-11</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>14542</th>\n",
-       "      <td>214543</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2016-10-05</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>16746</th>\n",
-       "      <td>216747</td>\n",
-       "      <td>16-25岁</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2016-11-25</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "       user_id     age  sex  user_lv_cd user_reg_tm\n",
-       "7457    207458      -1  2.0           1  2016-04-15\n",
-       "7463    207464  26-35岁  2.0           2  2016-04-15\n",
-       "7467    207468  36-45岁  2.0           3  2016-04-15\n",
-       "7472    207473      -1  2.0           1  2016-04-15\n",
-       "7482    207483  26-35岁  2.0           3  2016-04-15\n",
-       "7492    207493  16-25岁  2.0           3  2016-04-15\n",
-       "7493    207494  16-25岁  2.0           3  2016-04-15\n",
-       "7503    207504  16-25岁  2.0           4  2016-04-15\n",
-       "7510    207511  46-55岁  2.0           5  2016-04-15\n",
-       "7512    207513      -1  2.0           1  2016-04-15\n",
-       "7518    207519  26-35岁  2.0           2  2016-04-15\n",
-       "7521    207522  26-35岁  0.0           3  2016-04-15\n",
-       "7525    207526      -1  2.0           3  2016-04-15\n",
-       "7533    207534      -1  2.0           1  2016-04-15\n",
-       "7543    207544  26-35岁  2.0           3  2016-04-15\n",
-       "7544    207545      -1  2.0           1  2016-04-15\n",
-       "7551    207552  26-35岁  2.0           3  2016-04-15\n",
-       "7553    207554  16-25岁  2.0           4  2016-04-15\n",
-       "8545    208546  16-25岁  0.0           2  2016-04-29\n",
-       "9394    209395  16-25岁  1.0           2  2016-05-11\n",
-       "10362   210363   56岁以上  2.0           2  2016-05-24\n",
-       "10367   210368      -1  2.0           1  2016-05-24\n",
-       "11019   211020  36-45岁  2.0           3  2016-06-06\n",
-       "12014   212015  36-45岁  2.0           2  2016-07-05\n",
-       "13850   213851  26-35岁  2.0           3  2016-09-11\n",
-       "14542   214543      -1  2.0           1  2016-10-05\n",
-       "16746   216747  16-25岁  2.0           1  2016-11-25"
-      ]
-     },
-     "execution_count": 7,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "# check user who’s user_reg_tm  >= '2016-4-15'\n",
-    "df_user = pd.read_csv('./data/JData_User.csv',encoding='gbk')\n",
-    "df_user['user_reg_tm']=pd.to_datetime(df_user['user_reg_tm']) \n",
-    "df_user.loc[df_user.user_reg_tm>= '2016-4-15']"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "检查依然存在4月15号后注册的，如果这些客户没有4月15号后的行为数据，说明要删除。"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 8,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
-       "        vertical-align: top;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>user_id</th>\n",
-       "      <th>sku_id</th>\n",
-       "      <th>time</th>\n",
-       "      <th>model_id</th>\n",
-       "      <th>type</th>\n",
-       "      <th>cate</th>\n",
-       "      <th>brand</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "Empty DataFrame\n",
-       "Columns: [user_id, sku_id, time, model_id, type, cate, brand]\n",
-       "Index: []"
-      ]
-     },
-     "execution_count": 8,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "df_month = pd.read_csv('data/JData_Action_201604.csv')\n",
-    "df_month['time'] = pd.to_datetime(df_month['time'])\n",
-    "df_month.loc[df_month.time >= '2016-4-16']"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "说明客户没有交互数据，所以这一批客户不需要删除"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### 行为数据中的user_id为浮点型，进行INT类型转换"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 10,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "int64\n",
-      "int64\n",
-      "int64\n"
-     ]
-    }
-   ],
-   "source": [
-    "df_month = pd.read_csv('data/JData_Action_201602.csv',encoding='gbk')\n",
-    "df_month['user_id'] = df_month['user_id'].apply(lambda x:int(x))\n",
-    "print (df_month['user_id'].dtype)\n",
-    "df_month.to_csv('data/JData_Action_201602.csv',index=None)\n",
-    " \n",
-    "df_month = pd.read_csv('data/JData_Action_201603.csv',encoding='gbk')\n",
-    "df_month['user_id'] = df_month['user_id'].apply(lambda x:int(x))\n",
-    "print (df_month['user_id'].dtype)\n",
-    "df_month.to_csv('data/JData_Action_201603.csv',index=None)\n",
-    " \n",
-    "df_month = pd.read_csv('data/JData_Action_201604.csv',encoding='gbk')\n",
-    "df_month['user_id'] = df_month['user_id'].apply(lambda x:int(x))\n",
-    "print (df_month['user_id'].dtype)\n",
-    "df_month.to_csv('data/JData_Action_201604.csv',index=None)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### 年龄区间的处理\n",
-    "查看用户年龄分布，并做特征编码"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 11,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      " 3.0    46570\n",
-      " 4.0    30336\n",
-      "-1.0    14412\n",
-      " 2.0     8797\n",
-      " 5.0     3325\n",
-      " 6.0     1871\n",
-      " 1.0        7\n",
-      "Name: age, dtype: int64\n"
-     ]
-    }
-   ],
-   "source": [
-    "age_mapping = {  \n",
-    "           '15岁以下': 1,  \n",
-    "           '16-25岁': 2,  \n",
-    "           '26-35岁': 3,\n",
-    "           '36-45岁': 4,\n",
-    "           '46-55岁': 5,\n",
-    "           '56岁以上': 6,\n",
-    "           '-1' :-1\n",
-    "            }  \n",
-    "df_user['age'] = df_user['age'].map(age_mapping)\n",
-    "print(df_user.age.value_counts())\n",
-    "df_user.to_csv('data\\JData_User.csv',index=None)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "为了能够进行上述清洗,在此首先构造了简单的用户(user)行为特征和商品(item)行为特征,对应于两张表user_table和item_table."
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### user_table特征包括：\n",
-    "* user_table特征包括:\n",
-    "* user_id(用户id),age(年龄),sex(性别),\n",
-    "* user_lv_cd(用户级别),browse_num(浏览数),\n",
-    "* addcart_num(加购数),delcart_num(删购数),\n",
-    "* buy_num(购买数),favor_num(收藏数),\n",
-    "* click_num(点击数),buy_addcart_ratio(购买加购转化率),\n",
-    "* buy_browse_ratio(购买浏览转化率),\n",
-    "* buy_click_ratio(购买点击转化率),\n",
-    "* buy_favor_ratio(购买收藏转化率)\n",
-    "\n",
-    "### item_table特征包括：\n",
-    "* sku_id(商品id),attr1,attr2,\n",
-    "* attr3,cate,brand,browse_num,\n",
-    "* addcart_num,delcart_num,\n",
-    "* buy_num,favor_num,click_num,\n",
-    "* buy_addcart_ratio,buy_browse_ratio,\n",
-    "* buy_click_ratio,buy_favor_ratio,\n",
-    "* comment_num(评论数),\n",
-    "* has_bad_comment(是否有差评),\n",
-    "* bad_comment_rate(差评率)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### 构建User_table"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 14,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# 定义文件名\n",
-    "ACTION_201602_FILE = \"data/JData_Action_201602.csv\"\n",
-    "ACTION_201603_FILE = \"data/JData_Action_201603.csv\"\n",
-    "ACTION_201604_FILE = \"data/JData_Action_201604.csv\"\n",
-    "COMMENT_FILE = \"data/JData_Comment.csv\"\n",
-    "PRODUCT_FILE = \"data/JData_Product.csv\"\n",
-    "USER_FILE = \"data/JData_User.csv\"\n",
-    "\n",
-    "USER_TABLE_FILE = \"data/user_table.csv\"\n",
-    "ITEM_TABLE_FILE = \"data/item_table.csv\""
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 15,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "import numpy as np\n",
-    "from collections import Counter"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 16,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# 功能函数: 对每一个user分组的数据进行统计\n",
-    "def add_type_count(group):\n",
-    "    behavior_type = group.type.astype(int) \n",
-    "    # 用户行为类别\n",
-    "    type_cnt = Counter(behavior_type)\n",
-    "    # 1: 浏览 2: 加购 3: 删除\n",
-    "    # 4: 购买 5: 收藏 6: 点击\n",
-    "    group['browse_num'] = type_cnt[1]\n",
-    "    group['addcart_num'] = type_cnt[2]\n",
-    "    group['delcart_num'] = type_cnt[3]\n",
-    "    group['buy_num'] = type_cnt[4]\n",
-    "    group['favor_num'] = type_cnt[5]\n",
-    "    group['click_num'] = type_cnt[6]\n",
-    " \n",
-    "    return group[['user_id', 'browse_num', 'addcart_num',\n",
-    "                  'delcart_num', 'buy_num', 'favor_num',\n",
-    "                  'click_num']]"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "由于用户行为数据量较大，一次性读入可能造成内存错误（Memory Error），因此使用pandas的分块（chunk）读取"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 17,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "#对action数据进行统计\n",
-    "#根据自己调节chunk_size大小\n",
-    "def get_from_action_data(fname, chunk_size=50000):\n",
-    "    reader = pd.read_csv(fname, header=0, iterator=True,encoding='gbk')\n",
-    "    chunks = []\n",
-    "    loop = True\n",
-    "    while loop:\n",
-    "        try:\n",
-    "            # 只读取user_id和type两个字段\n",
-    "            chunk = reader.get_chunk(chunk_size)[[\"user_id\", \"type\"]]\n",
-    "            chunks.append(chunk)\n",
-    "        except StopIteration:\n",
-    "            loop = False\n",
-    "            print(\"Iteration is stopped\")\n",
-    "    # 将块拼接为pandas dataframe格式\n",
-    "    df_ac = pd.concat(chunks, ignore_index=True)\n",
-    "    # 按user_id分组，对每一组进行统计，as_index 表示无索引形式返回数据\n",
-    "    df_ac = df_ac.groupby(['user_id'], as_index=False).apply(add_type_count)\n",
-    "    # 将重复的行丢弃\n",
-    "    df_ac = df_ac.drop_duplicates('user_id')\n",
-    " \n",
-    "    return df_ac"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 18,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# 将各个action数据的统计量进行聚合\n",
-    "def merge_action_data():\n",
-    "    df_ac = []\n",
-    "    df_ac.append(get_from_action_data(fname=ACTION_201602_FILE))\n",
-    "    df_ac.append(get_from_action_data(fname=ACTION_201603_FILE))\n",
-    "    df_ac.append(get_from_action_data(fname=ACTION_201604_FILE))\n",
-    " \n",
-    "    df_ac = pd.concat(df_ac, ignore_index=True)\n",
-    "    # 用户在不同action表中统计量求和\n",
-    "    df_ac = df_ac.groupby(['user_id'], as_index=False).sum()\n",
-    "    #　构造转化率字段\n",
-    "    df_ac['buy_addcart_ratio'] = df_ac['buy_num'] / df_ac['addcart_num']\n",
-    "    df_ac['buy_browse_ratio'] = df_ac['buy_num'] / df_ac['browse_num']\n",
-    "    df_ac['buy_click_ratio'] = df_ac['buy_num'] / df_ac['click_num']\n",
-    "    df_ac['buy_favor_ratio'] = df_ac['buy_num'] / df_ac['favor_num']\n",
-    "    \n",
-    "    # 将大于１的转化率字段置为１(100%)\n",
-    "    df_ac.loc[df_ac['buy_addcart_ratio'] > 1., 'buy_addcart_ratio'] = 1.\n",
-    "    df_ac.loc[df_ac['buy_browse_ratio'] > 1., 'buy_browse_ratio'] = 1.\n",
-    "    df_ac.loc[df_ac['buy_click_ratio'] > 1., 'buy_click_ratio'] = 1.\n",
-    "    df_ac.loc[df_ac['buy_favor_ratio'] > 1., 'buy_favor_ratio'] = 1.\n",
-    " \n",
-    "    return df_ac"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 19,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "#　从FJData_User表中抽取需要的字段\n",
-    "def get_from_jdata_user():\n",
-    "    df_usr = pd.read_csv(USER_FILE, header=0,encoding='gbk')\n",
-    "    df_usr = df_usr[[\"user_id\", \"age\", \"sex\", \"user_lv_cd\"]]\n",
-    "    return df_usr"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 20,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
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-       "\n",
-       "    .dataframe tbody tr th {\n",
-       "        vertical-align: top;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>user_id</th>\n",
-       "      <th>age</th>\n",
-       "      <th>sex</th>\n",
-       "      <th>user_lv_cd</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>0</th>\n",
-       "      <td>200001</td>\n",
-       "      <td>6.0</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>5</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>1</th>\n",
-       "      <td>200002</td>\n",
-       "      <td>-1.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>2</th>\n",
-       "      <td>200003</td>\n",
-       "      <td>4.0</td>\n",
-       "      <td>1.0</td>\n",
-       "      <td>4</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>3</th>\n",
-       "      <td>200004</td>\n",
-       "      <td>-1.0</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>200005</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>4</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "   user_id  age  sex  user_lv_cd\n",
-       "0   200001  6.0  2.0           5\n",
-       "1   200002 -1.0  0.0           1\n",
-       "2   200003  4.0  1.0           4\n",
-       "3   200004 -1.0  2.0           1\n",
-       "4   200005  2.0  0.0           4"
-      ]
-     },
-     "execution_count": 20,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "user_base = get_from_jdata_user()\n",
-    "user_base.head()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 21,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Iteration is stopped\n",
-      "Iteration is stopped\n",
-      "Iteration is stopped\n"
-     ]
-    },
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
-       "        vertical-align: top;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>user_id</th>\n",
-       "      <th>browse_num</th>\n",
-       "      <th>addcart_num</th>\n",
-       "      <th>delcart_num</th>\n",
-       "      <th>buy_num</th>\n",
-       "      <th>favor_num</th>\n",
-       "      <th>click_num</th>\n",
-       "      <th>buy_addcart_ratio</th>\n",
-       "      <th>buy_browse_ratio</th>\n",
-       "      <th>buy_click_ratio</th>\n",
-       "      <th>buy_favor_ratio</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>0</th>\n",
-       "      <td>200001</td>\n",
-       "      <td>212</td>\n",
-       "      <td>22</td>\n",
-       "      <td>13</td>\n",
-       "      <td>1</td>\n",
-       "      <td>0</td>\n",
-       "      <td>414</td>\n",
-       "      <td>0.045455</td>\n",
-       "      <td>0.004717</td>\n",
-       "      <td>0.002415</td>\n",
-       "      <td>1.0</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>1</th>\n",
-       "      <td>200002</td>\n",
-       "      <td>238</td>\n",
-       "      <td>1</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>484</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>2</th>\n",
-       "      <td>200003</td>\n",
-       "      <td>221</td>\n",
-       "      <td>4</td>\n",
-       "      <td>1</td>\n",
-       "      <td>0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>420</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.0</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>3</th>\n",
-       "      <td>200004</td>\n",
-       "      <td>52</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>61</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>200005</td>\n",
-       "      <td>106</td>\n",
-       "      <td>2</td>\n",
-       "      <td>3</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2</td>\n",
-       "      <td>161</td>\n",
-       "      <td>0.500000</td>\n",
-       "      <td>0.009434</td>\n",
-       "      <td>0.006211</td>\n",
-       "      <td>0.5</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "   user_id  browse_num  addcart_num  delcart_num  buy_num  favor_num  \\\n",
-       "0   200001         212           22           13        1          0   \n",
-       "1   200002         238            1            0        0          0   \n",
-       "2   200003         221            4            1        0          1   \n",
-       "3   200004          52            0            0        0          0   \n",
-       "4   200005         106            2            3        1          2   \n",
-       "\n",
-       "   click_num  buy_addcart_ratio  buy_browse_ratio  buy_click_ratio  \\\n",
-       "0        414           0.045455          0.004717         0.002415   \n",
-       "1        484           0.000000          0.000000         0.000000   \n",
-       "2        420           0.000000          0.000000         0.000000   \n",
-       "3         61                NaN          0.000000         0.000000   \n",
-       "4        161           0.500000          0.009434         0.006211   \n",
-       "\n",
-       "   buy_favor_ratio  \n",
-       "0              1.0  \n",
-       "1              NaN  \n",
-       "2              0.0  \n",
-       "3              NaN  \n",
-       "4              0.5  "
-      ]
-     },
-     "execution_count": 21,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "user_behavior = merge_action_data()\n",
-    "user_behavior.head()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 22,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# 连接成一张表，类似于SQL的左连接(left join)\n",
-    "user_behavior = pd.merge(user_base, user_behavior, on=['user_id'], how='left')\n",
-    "# 保存为user_table.csv\n",
-    "user_behavior.to_csv(USER_TABLE_FILE, index=False)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 23,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
-       "        vertical-align: top;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>user_id</th>\n",
-       "      <th>age</th>\n",
-       "      <th>sex</th>\n",
-       "      <th>user_lv_cd</th>\n",
-       "      <th>browse_num</th>\n",
-       "      <th>addcart_num</th>\n",
-       "      <th>delcart_num</th>\n",
-       "      <th>buy_num</th>\n",
-       "      <th>favor_num</th>\n",
-       "      <th>click_num</th>\n",
-       "      <th>buy_addcart_ratio</th>\n",
-       "      <th>buy_browse_ratio</th>\n",
-       "      <th>buy_click_ratio</th>\n",
-       "      <th>buy_favor_ratio</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>0</th>\n",
-       "      <td>200001</td>\n",
-       "      <td>6.0</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>5</td>\n",
-       "      <td>212.0</td>\n",
-       "      <td>22.0</td>\n",
-       "      <td>13.0</td>\n",
-       "      <td>1.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>414.0</td>\n",
-       "      <td>0.045455</td>\n",
-       "      <td>0.004717</td>\n",
-       "      <td>0.002415</td>\n",
-       "      <td>1.0</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>1</th>\n",
-       "      <td>200002</td>\n",
-       "      <td>-1.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>238.0</td>\n",
-       "      <td>1.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>484.0</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>2</th>\n",
-       "      <td>200003</td>\n",
-       "      <td>4.0</td>\n",
-       "      <td>1.0</td>\n",
-       "      <td>4</td>\n",
-       "      <td>221.0</td>\n",
-       "      <td>4.0</td>\n",
-       "      <td>1.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>1.0</td>\n",
-       "      <td>420.0</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.0</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>3</th>\n",
-       "      <td>200004</td>\n",
-       "      <td>-1.0</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>52.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>61.0</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>200005</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>4</td>\n",
-       "      <td>106.0</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>3.0</td>\n",
-       "      <td>1.0</td>\n",
-       "      <td>2.0</td>\n",
-       "      <td>161.0</td>\n",
-       "      <td>0.500000</td>\n",
-       "      <td>0.009434</td>\n",
-       "      <td>0.006211</td>\n",
-       "      <td>0.5</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "   user_id  age  sex  user_lv_cd  browse_num  addcart_num  delcart_num  \\\n",
-       "0   200001  6.0  2.0           5       212.0         22.0         13.0   \n",
-       "1   200002 -1.0  0.0           1       238.0          1.0          0.0   \n",
-       "2   200003  4.0  1.0           4       221.0          4.0          1.0   \n",
-       "3   200004 -1.0  2.0           1        52.0          0.0          0.0   \n",
-       "4   200005  2.0  0.0           4       106.0          2.0          3.0   \n",
-       "\n",
-       "   buy_num  favor_num  click_num  buy_addcart_ratio  buy_browse_ratio  \\\n",
-       "0      1.0        0.0      414.0           0.045455          0.004717   \n",
-       "1      0.0        0.0      484.0           0.000000          0.000000   \n",
-       "2      0.0        1.0      420.0           0.000000          0.000000   \n",
-       "3      0.0        0.0       61.0                NaN          0.000000   \n",
-       "4      1.0        2.0      161.0           0.500000          0.009434   \n",
-       "\n",
-       "   buy_click_ratio  buy_favor_ratio  \n",
-       "0         0.002415              1.0  \n",
-       "1         0.000000              NaN  \n",
-       "2         0.000000              0.0  \n",
-       "3         0.000000              NaN  \n",
-       "4         0.006211              0.5  "
-      ]
-     },
-     "execution_count": 23,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "user_table = pd.read_csv(USER_TABLE_FILE)\n",
-    "user_table.head()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### 构建Item_table"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 1,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# 定义文件名\n",
-    "ACTION_201602_FILE = \"data/JData_Action_201602.csv\"\n",
-    "ACTION_201603_FILE = \"data/JData_Action_201603.csv\"\n",
-    "ACTION_201604_FILE = \"data/JData_Action_201604.csv\"\n",
-    "COMMENT_FILE = \"data/JData_Comment.csv\"\n",
-    "PRODUCT_FILE = \"data/JData_Product.csv\"\n",
-    "USER_FILE = \"data/JData_User.csv\"\n",
-    "\n",
-    "USER_TABLE_FILE = \"data/user_table.csv\"\n",
-    "ITEM_TABLE_FILE = \"data/item_table.csv\""
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 2,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "import pandas as pd\n",
-    "import numpy as np\n",
-    "from collections import Counter"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 11,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# 读取Product中商品\n",
-    "def get_from_jdata_product():\n",
-    "    df_item = pd.read_csv(PRODUCT_FILE, header=0,encoding='gbk')\n",
-    "    return df_item"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 12,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# 功能函数: 对每一个商品分组的数据进行统计\n",
-    "def add_type_count(group):\n",
-    "    behavior_type = group.type.astype(int) \n",
-    "    type_cnt = Counter(behavior_type)\n",
-    "    \n",
-    "    group['browse_num'] = type_cnt[1]\n",
-    "    group['addcart_num'] = type_cnt[2]\n",
-    "    group['delcart_num'] = type_cnt[3]\n",
-    "    group['buy_num'] = type_cnt[4]\n",
-    "    group['favor_num'] = type_cnt[5]\n",
-    "    group['click_num'] = type_cnt[6]\n",
-    " \n",
-    "    return group[['sku_id', 'browse_num', 'addcart_num',\n",
-    "                  'delcart_num', 'buy_num', 'favor_num',\n",
-    "                  'click_num']]"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 13,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# 对action数据进行统计\n",
-    "def get_from_action_data(fname, chunk_size=50000):\n",
-    "    reader = pd.read_csv(fname, header=0, iterator=True,encoding='gbk')\n",
-    "    chunks = []\n",
-    "    loop = True\n",
-    "    while loop:\n",
-    "        try:\n",
-    "            chunk = reader.get_chunk(chunk_size)[[\"sku_id\", \"type\"]]\n",
-    "            chunks.append(chunk)\n",
-    "        except StopIteration:\n",
-    "            loop = False\n",
-    "            print(\"Iteration is stopped\")\n",
-    "            \n",
-    "    df_ac = pd.concat(chunks, ignore_index=True)\n",
-    "    df_ac = df_ac.groupby(['sku_id'], as_index=False).apply(add_type_count)\n",
-    "    df_ac = df_ac.drop_duplicates('sku_id')\n",
-    " \n",
-    "    return df_ac"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 14,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# 获取评论中的商品数据,如果存在某一个商品有两个日期的评论，我们取最晚的那一个\n",
-    "def get_from_jdata_comment():\n",
-    "    df_cmt = pd.read_csv(COMMENT_FILE, header=0)\n",
-    "    df_cmt['dt'] = pd.to_datetime(df_cmt['dt'])\n",
-    "    # find latest comment index\n",
-    "    idx = df_cmt.groupby(['sku_id'])['dt'].transform(max) == df_cmt['dt']  # 取最晚的那一个？？\n",
-    "    df_cmt = df_cmt[idx]\n",
-    " \n",
-    "    return df_cmt[['sku_id', 'comment_num',\n",
-    "                   'has_bad_comment', 'bad_comment_rate']]"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 15,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "def merge_action_data():\n",
-    "    df_ac = []\n",
-    "    df_ac.append(get_from_action_data(fname=ACTION_201602_FILE))\n",
-    "    df_ac.append(get_from_action_data(fname=ACTION_201603_FILE))\n",
-    "    df_ac.append(get_from_action_data(fname=ACTION_201604_FILE))\n",
-    " \n",
-    "    df_ac = pd.concat(df_ac, ignore_index=True)\n",
-    "    df_ac = df_ac.groupby(['sku_id'], as_index=False).sum()\n",
-    "\n",
-    "    df_ac['buy_addcart_ratio'] = df_ac['buy_num'] / df_ac['addcart_num']\n",
-    "    df_ac['buy_browse_ratio'] = df_ac['buy_num'] / df_ac['browse_num']\n",
-    "    df_ac['buy_click_ratio'] = df_ac['buy_num'] / df_ac['click_num']\n",
-    "    df_ac['buy_favor_ratio'] = df_ac['buy_num'] / df_ac['favor_num']\n",
-    "    \n",
-    "    df_ac.loc[df_ac['buy_addcart_ratio'] > 1., 'buy_addcart_ratio'] = 1.\n",
-    "    df_ac.loc[df_ac['buy_browse_ratio'] > 1., 'buy_browse_ratio'] = 1.\n",
-    "    df_ac.loc[df_ac['buy_click_ratio'] > 1., 'buy_click_ratio'] = 1.\n",
-    "    df_ac.loc[df_ac['buy_favor_ratio'] > 1., 'buy_favor_ratio'] = 1.\n",
-    " \n",
-    "    return df_ac"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 16,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
-       "        vertical-align: top;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>sku_id</th>\n",
-       "      <th>a1</th>\n",
-       "      <th>a2</th>\n",
-       "      <th>a3</th>\n",
-       "      <th>cate</th>\n",
-       "      <th>brand</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>0</th>\n",
-       "      <td>10</td>\n",
-       "      <td>3</td>\n",
-       "      <td>1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>8</td>\n",
-       "      <td>489</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>1</th>\n",
-       "      <td>100002</td>\n",
-       "      <td>3</td>\n",
-       "      <td>2</td>\n",
-       "      <td>2</td>\n",
-       "      <td>8</td>\n",
-       "      <td>489</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>2</th>\n",
-       "      <td>100003</td>\n",
-       "      <td>1</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>8</td>\n",
-       "      <td>30</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>3</th>\n",
-       "      <td>100006</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2</td>\n",
-       "      <td>1</td>\n",
-       "      <td>8</td>\n",
-       "      <td>545</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>10001</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2</td>\n",
-       "      <td>8</td>\n",
-       "      <td>244</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "   sku_id  a1  a2  a3  cate  brand\n",
-       "0      10   3   1   1     8    489\n",
-       "1  100002   3   2   2     8    489\n",
-       "2  100003   1  -1  -1     8     30\n",
-       "3  100006   1   2   1     8    545\n",
-       "4   10001  -1   1   2     8    244"
-      ]
-     },
-     "execution_count": 16,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "item_base = get_from_jdata_product()\n",
-    "item_base.head()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 17,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Iteration is stopped\n",
-      "Iteration is stopped\n",
-      "Iteration is stopped\n"
-     ]
-    },
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
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-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
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-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>sku_id</th>\n",
-       "      <th>browse_num</th>\n",
-       "      <th>addcart_num</th>\n",
-       "      <th>delcart_num</th>\n",
-       "      <th>buy_num</th>\n",
-       "      <th>favor_num</th>\n",
-       "      <th>click_num</th>\n",
-       "      <th>buy_addcart_ratio</th>\n",
-       "      <th>buy_browse_ratio</th>\n",
-       "      <th>buy_click_ratio</th>\n",
-       "      <th>buy_favor_ratio</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>0</th>\n",
-       "      <td>2</td>\n",
-       "      <td>55</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>79</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>1</th>\n",
-       "      <td>18</td>\n",
-       "      <td>2</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>2</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>2</th>\n",
-       "      <td>36</td>\n",
-       "      <td>107</td>\n",
-       "      <td>4</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>186</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>3</th>\n",
-       "      <td>37</td>\n",
-       "      <td>5</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>10</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>40</td>\n",
-       "      <td>79</td>\n",
-       "      <td>2</td>\n",
-       "      <td>2</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>179</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "   sku_id  browse_num  addcart_num  delcart_num  buy_num  favor_num  \\\n",
-       "0       2          55            0            0        0          0   \n",
-       "1      18           2            0            0        0          0   \n",
-       "2      36         107            4            0        0          1   \n",
-       "3      37           5            0            0        0          0   \n",
-       "4      40          79            2            2        0          0   \n",
-       "\n",
-       "   click_num  buy_addcart_ratio  buy_browse_ratio  buy_click_ratio  \\\n",
-       "0         79                NaN               0.0              0.0   \n",
-       "1          2                NaN               0.0              0.0   \n",
-       "2        186                0.0               0.0              0.0   \n",
-       "3         10                NaN               0.0              0.0   \n",
-       "4        179                0.0               0.0              0.0   \n",
-       "\n",
-       "   buy_favor_ratio  \n",
-       "0              NaN  \n",
-       "1              NaN  \n",
-       "2              0.0  \n",
-       "3              NaN  \n",
-       "4              NaN  "
-      ]
-     },
-     "execution_count": 17,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "item_behavior = merge_action_data()\n",
-    "item_behavior.head()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 18,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
-       "        vertical-align: top;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>sku_id</th>\n",
-       "      <th>comment_num</th>\n",
-       "      <th>has_bad_comment</th>\n",
-       "      <th>bad_comment_rate</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>512006</th>\n",
-       "      <td>1000</td>\n",
-       "      <td>3</td>\n",
-       "      <td>1</td>\n",
-       "      <td>0.0417</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>512007</th>\n",
-       "      <td>10000</td>\n",
-       "      <td>2</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0.0000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>512008</th>\n",
-       "      <td>100011</td>\n",
-       "      <td>4</td>\n",
-       "      <td>1</td>\n",
-       "      <td>0.0376</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>512009</th>\n",
-       "      <td>100018</td>\n",
-       "      <td>3</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0.0000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>512010</th>\n",
-       "      <td>100020</td>\n",
-       "      <td>3</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0.0000</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "        sku_id  comment_num  has_bad_comment  bad_comment_rate\n",
-       "512006    1000            3                1            0.0417\n",
-       "512007   10000            2                0            0.0000\n",
-       "512008  100011            4                1            0.0376\n",
-       "512009  100018            3                0            0.0000\n",
-       "512010  100020            3                0            0.0000"
-      ]
-     },
-     "execution_count": 18,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "item_comment = get_from_jdata_comment()\n",
-    "item_comment.head()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 19,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# SQL: left join\n",
-    "item_behavior = pd.merge(item_base, item_behavior, on=['sku_id'], how='left')\n",
-    "item_behavior = pd.merge(item_behavior, item_comment, on=['sku_id'], how='left')\n",
-    " \n",
-    "item_behavior.to_csv(ITEM_TABLE_FILE, index=False)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 23,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
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-       "\n",
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-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>sku_id</th>\n",
-       "      <th>a1</th>\n",
-       "      <th>a2</th>\n",
-       "      <th>a3</th>\n",
-       "      <th>cate</th>\n",
-       "      <th>brand</th>\n",
-       "      <th>browse_num</th>\n",
-       "      <th>addcart_num</th>\n",
-       "      <th>delcart_num</th>\n",
-       "      <th>buy_num</th>\n",
-       "      <th>favor_num</th>\n",
-       "      <th>click_num</th>\n",
-       "      <th>buy_addcart_ratio</th>\n",
-       "      <th>buy_browse_ratio</th>\n",
-       "      <th>buy_click_ratio</th>\n",
-       "      <th>buy_favor_ratio</th>\n",
-       "      <th>comment_num</th>\n",
-       "      <th>has_bad_comment</th>\n",
-       "      <th>bad_comment_rate</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>0</th>\n",
-       "      <td>10</td>\n",
-       "      <td>3</td>\n",
-       "      <td>1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>8</td>\n",
-       "      <td>489</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>1</th>\n",
-       "      <td>100002</td>\n",
-       "      <td>3</td>\n",
-       "      <td>2</td>\n",
-       "      <td>2</td>\n",
-       "      <td>8</td>\n",
-       "      <td>489</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>2</th>\n",
-       "      <td>100003</td>\n",
-       "      <td>1</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>8</td>\n",
-       "      <td>30</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>3</th>\n",
-       "      <td>100006</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2</td>\n",
-       "      <td>1</td>\n",
-       "      <td>8</td>\n",
-       "      <td>545</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>10001</td>\n",
-       "      <td>-1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2</td>\n",
-       "      <td>8</td>\n",
-       "      <td>244</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "   sku_id  a1  a2  a3  cate  brand  browse_num  addcart_num  delcart_num  \\\n",
-       "0      10   3   1   1     8    489         NaN          NaN          NaN   \n",
-       "1  100002   3   2   2     8    489         NaN          NaN          NaN   \n",
-       "2  100003   1  -1  -1     8     30         NaN          NaN          NaN   \n",
-       "3  100006   1   2   1     8    545         NaN          NaN          NaN   \n",
-       "4   10001  -1   1   2     8    244         NaN          NaN          NaN   \n",
-       "\n",
-       "   buy_num  favor_num  click_num  buy_addcart_ratio  buy_browse_ratio  \\\n",
-       "0      NaN        NaN        NaN                NaN               NaN   \n",
-       "1      NaN        NaN        NaN                NaN               NaN   \n",
-       "2      NaN        NaN        NaN                NaN               NaN   \n",
-       "3      NaN        NaN        NaN                NaN               NaN   \n",
-       "4      NaN        NaN        NaN                NaN               NaN   \n",
-       "\n",
-       "   buy_click_ratio  buy_favor_ratio  comment_num  has_bad_comment  \\\n",
-       "0              NaN              NaN          NaN              NaN   \n",
-       "1              NaN              NaN          NaN              NaN   \n",
-       "2              NaN              NaN          NaN              NaN   \n",
-       "3              NaN              NaN          NaN              NaN   \n",
-       "4              NaN              NaN          NaN              NaN   \n",
-       "\n",
-       "   bad_comment_rate  \n",
-       "0               NaN  \n",
-       "1               NaN  \n",
-       "2               NaN  \n",
-       "3               NaN  \n",
-       "4               NaN  "
-      ]
-     },
-     "execution_count": 23,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "item_table = pd.read_csv(ITEM_TABLE_FILE)\n",
-    "item_table.head()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### 数据清洗\n",
-    "\n",
-    "用户清洗"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 24,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
-       "        vertical-align: top;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>user_id</th>\n",
-       "      <th>age</th>\n",
-       "      <th>sex</th>\n",
-       "      <th>user_lv_cd</th>\n",
-       "      <th>browse_num</th>\n",
-       "      <th>addcart_num</th>\n",
-       "      <th>delcart_num</th>\n",
-       "      <th>buy_num</th>\n",
-       "      <th>favor_num</th>\n",
-       "      <th>click_num</th>\n",
-       "      <th>buy_addcart_ratio</th>\n",
-       "      <th>buy_browse_ratio</th>\n",
-       "      <th>buy_click_ratio</th>\n",
-       "      <th>buy_favor_ratio</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>count</th>\n",
-       "      <td>105,321.000</td>\n",
-       "      <td>105,318.000</td>\n",
-       "      <td>105,318.000</td>\n",
-       "      <td>105,321.000</td>\n",
-       "      <td>105,180.000</td>\n",
-       "      <td>105,180.000</td>\n",
-       "      <td>105,180.000</td>\n",
-       "      <td>105,180.000</td>\n",
-       "      <td>105,180.000</td>\n",
-       "      <td>105,180.000</td>\n",
-       "      <td>72,129.000</td>\n",
-       "      <td>105,172.000</td>\n",
-       "      <td>103,197.000</td>\n",
-       "      <td>45,986.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>mean</th>\n",
-       "      <td>252,661.000</td>\n",
-       "      <td>2.773</td>\n",
-       "      <td>1.113</td>\n",
-       "      <td>3.850</td>\n",
-       "      <td>180.466</td>\n",
-       "      <td>5.471</td>\n",
-       "      <td>2.434</td>\n",
-       "      <td>0.459</td>\n",
-       "      <td>1.045</td>\n",
-       "      <td>291.222</td>\n",
-       "      <td>0.147</td>\n",
-       "      <td>0.005</td>\n",
-       "      <td>0.009</td>\n",
-       "      <td>0.552</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>std</th>\n",
-       "      <td>30,403.698</td>\n",
-       "      <td>1.672</td>\n",
-       "      <td>0.956</td>\n",
-       "      <td>1.072</td>\n",
-       "      <td>273.437</td>\n",
-       "      <td>10.618</td>\n",
-       "      <td>5.600</td>\n",
-       "      <td>1.048</td>\n",
-       "      <td>3.442</td>\n",
-       "      <td>460.031</td>\n",
-       "      <td>0.270</td>\n",
-       "      <td>0.022</td>\n",
-       "      <td>0.074</td>\n",
-       "      <td>0.473</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>min</th>\n",
-       "      <td>200,001.000</td>\n",
-       "      <td>-1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>25%</th>\n",
-       "      <td>226,331.000</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>40.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>59.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>50%</th>\n",
-       "      <td>252,661.000</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>4.000</td>\n",
-       "      <td>94.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>148.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>75%</th>\n",
-       "      <td>278,991.000</td>\n",
-       "      <td>4.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>5.000</td>\n",
-       "      <td>212.000</td>\n",
-       "      <td>6.000</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>342.000</td>\n",
-       "      <td>0.167</td>\n",
-       "      <td>0.002</td>\n",
-       "      <td>0.001</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>max</th>\n",
-       "      <td>305,321.000</td>\n",
-       "      <td>6.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>5.000</td>\n",
-       "      <td>7,605.000</td>\n",
-       "      <td>369.000</td>\n",
-       "      <td>231.000</td>\n",
-       "      <td>50.000</td>\n",
-       "      <td>99.000</td>\n",
-       "      <td>15,302.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "          user_id         age         sex  user_lv_cd  browse_num  \\\n",
-       "count 105,321.000 105,318.000 105,318.000 105,321.000 105,180.000   \n",
-       "mean  252,661.000       2.773       1.113       3.850     180.466   \n",
-       "std    30,403.698       1.672       0.956       1.072     273.437   \n",
-       "min   200,001.000      -1.000       0.000       1.000       0.000   \n",
-       "25%   226,331.000       3.000       0.000       3.000      40.000   \n",
-       "50%   252,661.000       3.000       2.000       4.000      94.000   \n",
-       "75%   278,991.000       4.000       2.000       5.000     212.000   \n",
-       "max   305,321.000       6.000       2.000       5.000   7,605.000   \n",
-       "\n",
-       "       addcart_num  delcart_num     buy_num   favor_num   click_num  \\\n",
-       "count  105,180.000  105,180.000 105,180.000 105,180.000 105,180.000   \n",
-       "mean         5.471        2.434       0.459       1.045     291.222   \n",
-       "std         10.618        5.600       1.048       3.442     460.031   \n",
-       "min          0.000        0.000       0.000       0.000       0.000   \n",
-       "25%          0.000        0.000       0.000       0.000      59.000   \n",
-       "50%          2.000        0.000       0.000       0.000     148.000   \n",
-       "75%          6.000        3.000       1.000       0.000     342.000   \n",
-       "max        369.000      231.000      50.000      99.000  15,302.000   \n",
-       "\n",
-       "       buy_addcart_ratio  buy_browse_ratio  buy_click_ratio  buy_favor_ratio  \n",
-       "count         72,129.000       105,172.000      103,197.000       45,986.000  \n",
-       "mean               0.147             0.005            0.009            0.552  \n",
-       "std                0.270             0.022            0.074            0.473  \n",
-       "min                0.000             0.000            0.000            0.000  \n",
-       "25%                0.000             0.000            0.000            0.000  \n",
-       "50%                0.000             0.000            0.000            1.000  \n",
-       "75%                0.167             0.002            0.001            1.000  \n",
-       "max                1.000             1.000            1.000            1.000  "
-      ]
-     },
-     "execution_count": 24,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "df_user = pd.read_csv('data/User_table.csv',header=0)\n",
-    "pd.options.display.float_format = '{:,.3f}'.format  #输出格式设置，保留三位小数\n",
-    "df_user.describe()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "由上述统计信息发现： 第一行中根据User_id统计发现有105321个用户，发现有3个用户没有age,sex字段\n",
-    "\n",
-    "根据浏览、加购、删购、购买等记录却只有105180条记录，说明存在用户无任何交互记录，因此可以删除上述用户"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "删除没有age,sex字段的用户"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 25,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
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-       "\n",
-       "    .dataframe tbody tr th {\n",
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-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>user_id</th>\n",
-       "      <th>age</th>\n",
-       "      <th>sex</th>\n",
-       "      <th>user_lv_cd</th>\n",
-       "      <th>browse_num</th>\n",
-       "      <th>addcart_num</th>\n",
-       "      <th>delcart_num</th>\n",
-       "      <th>buy_num</th>\n",
-       "      <th>favor_num</th>\n",
-       "      <th>click_num</th>\n",
-       "      <th>buy_addcart_ratio</th>\n",
-       "      <th>buy_browse_ratio</th>\n",
-       "      <th>buy_click_ratio</th>\n",
-       "      <th>buy_favor_ratio</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>34072</th>\n",
-       "      <td>234073</td>\n",
-       "      <td>nan</td>\n",
-       "      <td>nan</td>\n",
-       "      <td>1</td>\n",
-       "      <td>32.000</td>\n",
-       "      <td>6.000</td>\n",
-       "      <td>4.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>41.000</td>\n",
-       "      <td>0.167</td>\n",
-       "      <td>0.031</td>\n",
-       "      <td>0.024</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>38905</th>\n",
-       "      <td>238906</td>\n",
-       "      <td>nan</td>\n",
-       "      <td>nan</td>\n",
-       "      <td>1</td>\n",
-       "      <td>171.000</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>464.000</td>\n",
-       "      <td>0.667</td>\n",
-       "      <td>0.012</td>\n",
-       "      <td>0.004</td>\n",
-       "      <td>0.667</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>67704</th>\n",
-       "      <td>267705</td>\n",
-       "      <td>nan</td>\n",
-       "      <td>nan</td>\n",
-       "      <td>1</td>\n",
-       "      <td>342.000</td>\n",
-       "      <td>18.000</td>\n",
-       "      <td>8.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>743.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>nan</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "       user_id  age  sex  user_lv_cd  browse_num  addcart_num  delcart_num  \\\n",
-       "34072   234073  nan  nan           1      32.000        6.000        4.000   \n",
-       "38905   238906  nan  nan           1     171.000        3.000        2.000   \n",
-       "67704   267705  nan  nan           1     342.000       18.000        8.000   \n",
-       "\n",
-       "       buy_num  favor_num  click_num  buy_addcart_ratio  buy_browse_ratio  \\\n",
-       "34072    1.000      0.000     41.000              0.167             0.031   \n",
-       "38905    2.000      3.000    464.000              0.667             0.012   \n",
-       "67704    0.000      0.000    743.000              0.000             0.000   \n",
-       "\n",
-       "       buy_click_ratio  buy_favor_ratio  \n",
-       "34072            0.024            1.000  \n",
-       "38905            0.004            0.667  \n",
-       "67704            0.000              nan  "
-      ]
-     },
-     "execution_count": 25,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "df_user[df_user['age'].isnull()]"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 26,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
-       "        vertical-align: top;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>user_id</th>\n",
-       "      <th>age</th>\n",
-       "      <th>sex</th>\n",
-       "      <th>user_lv_cd</th>\n",
-       "      <th>browse_num</th>\n",
-       "      <th>addcart_num</th>\n",
-       "      <th>delcart_num</th>\n",
-       "      <th>buy_num</th>\n",
-       "      <th>favor_num</th>\n",
-       "      <th>click_num</th>\n",
-       "      <th>buy_addcart_ratio</th>\n",
-       "      <th>buy_browse_ratio</th>\n",
-       "      <th>buy_click_ratio</th>\n",
-       "      <th>buy_favor_ratio</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>count</th>\n",
-       "      <td>105,318.000</td>\n",
-       "      <td>105,318.000</td>\n",
-       "      <td>105,318.000</td>\n",
-       "      <td>105,318.000</td>\n",
-       "      <td>105,177.000</td>\n",
-       "      <td>105,177.000</td>\n",
-       "      <td>105,177.000</td>\n",
-       "      <td>105,177.000</td>\n",
-       "      <td>105,177.000</td>\n",
-       "      <td>105,177.000</td>\n",
-       "      <td>72,126.000</td>\n",
-       "      <td>105,169.000</td>\n",
-       "      <td>103,194.000</td>\n",
-       "      <td>45,984.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>mean</th>\n",
-       "      <td>252,661.164</td>\n",
-       "      <td>2.773</td>\n",
-       "      <td>1.113</td>\n",
-       "      <td>3.850</td>\n",
-       "      <td>180.466</td>\n",
-       "      <td>5.471</td>\n",
-       "      <td>2.434</td>\n",
-       "      <td>0.459</td>\n",
-       "      <td>1.045</td>\n",
-       "      <td>291.219</td>\n",
-       "      <td>0.147</td>\n",
-       "      <td>0.005</td>\n",
-       "      <td>0.009</td>\n",
-       "      <td>0.552</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>std</th>\n",
-       "      <td>30,404.012</td>\n",
-       "      <td>1.672</td>\n",
-       "      <td>0.956</td>\n",
-       "      <td>1.071</td>\n",
-       "      <td>273.440</td>\n",
-       "      <td>10.618</td>\n",
-       "      <td>5.600</td>\n",
-       "      <td>1.048</td>\n",
-       "      <td>3.442</td>\n",
-       "      <td>460.034</td>\n",
-       "      <td>0.270</td>\n",
-       "      <td>0.022</td>\n",
-       "      <td>0.074</td>\n",
-       "      <td>0.473</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>min</th>\n",
-       "      <td>200,001.000</td>\n",
-       "      <td>-1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>25%</th>\n",
-       "      <td>226,330.250</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>40.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>59.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>50%</th>\n",
-       "      <td>252,661.500</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>4.000</td>\n",
-       "      <td>94.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>148.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>75%</th>\n",
-       "      <td>278,991.750</td>\n",
-       "      <td>4.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>5.000</td>\n",
-       "      <td>212.000</td>\n",
-       "      <td>6.000</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>342.000</td>\n",
-       "      <td>0.167</td>\n",
-       "      <td>0.002</td>\n",
-       "      <td>0.001</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>max</th>\n",
-       "      <td>305,321.000</td>\n",
-       "      <td>6.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>5.000</td>\n",
-       "      <td>7,605.000</td>\n",
-       "      <td>369.000</td>\n",
-       "      <td>231.000</td>\n",
-       "      <td>50.000</td>\n",
-       "      <td>99.000</td>\n",
-       "      <td>15,302.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "          user_id         age         sex  user_lv_cd  browse_num  \\\n",
-       "count 105,318.000 105,318.000 105,318.000 105,318.000 105,177.000   \n",
-       "mean  252,661.164       2.773       1.113       3.850     180.466   \n",
-       "std    30,404.012       1.672       0.956       1.071     273.440   \n",
-       "min   200,001.000      -1.000       0.000       1.000       0.000   \n",
-       "25%   226,330.250       3.000       0.000       3.000      40.000   \n",
-       "50%   252,661.500       3.000       2.000       4.000      94.000   \n",
-       "75%   278,991.750       4.000       2.000       5.000     212.000   \n",
-       "max   305,321.000       6.000       2.000       5.000   7,605.000   \n",
-       "\n",
-       "       addcart_num  delcart_num     buy_num   favor_num   click_num  \\\n",
-       "count  105,177.000  105,177.000 105,177.000 105,177.000 105,177.000   \n",
-       "mean         5.471        2.434       0.459       1.045     291.219   \n",
-       "std         10.618        5.600       1.048       3.442     460.034   \n",
-       "min          0.000        0.000       0.000       0.000       0.000   \n",
-       "25%          0.000        0.000       0.000       0.000      59.000   \n",
-       "50%          2.000        0.000       0.000       0.000     148.000   \n",
-       "75%          6.000        3.000       1.000       0.000     342.000   \n",
-       "max        369.000      231.000      50.000      99.000  15,302.000   \n",
-       "\n",
-       "       buy_addcart_ratio  buy_browse_ratio  buy_click_ratio  buy_favor_ratio  \n",
-       "count         72,126.000       105,169.000      103,194.000       45,984.000  \n",
-       "mean               0.147             0.005            0.009            0.552  \n",
-       "std                0.270             0.022            0.074            0.473  \n",
-       "min                0.000             0.000            0.000            0.000  \n",
-       "25%                0.000             0.000            0.000            0.000  \n",
-       "50%                0.000             0.000            0.000            1.000  \n",
-       "75%                0.167             0.002            0.001            1.000  \n",
-       "max                1.000             1.000            1.000            1.000  "
-      ]
-     },
-     "execution_count": 26,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "delete_list = df_user[df_user['age'].isnull()].index\n",
-    "df_user.drop(delete_list,axis=0,inplace=True)\n",
-    "df_user.describe()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "删除无交互记录的用户"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 27,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "105177\n"
-     ]
-    }
-   ],
-   "source": [
-    "df_naction = df_user[(df_user['browse_num'].isnull()) & (df_user['addcart_num'].isnull()) & (df_user['delcart_num'].isnull()) & (df_user['buy_num'].isnull()) & (df_user['favor_num'].isnull()) & (df_user['click_num'].isnull())]\n",
-    "df_user.drop(df_naction.index,axis=0,inplace=True)\n",
-    "print(len(df_user))"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "统计并删除无购买记录的用户"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 28,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "75694\n"
-     ]
-    }
-   ],
-   "source": [
-    "df_bzero = df_user[df_user['buy_num']==0]\n",
-    "# 输出购买数为0的总记录数\n",
-    "print(len(df_bzero))"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 29,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
-       "        vertical-align: top;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>user_id</th>\n",
-       "      <th>age</th>\n",
-       "      <th>sex</th>\n",
-       "      <th>user_lv_cd</th>\n",
-       "      <th>browse_num</th>\n",
-       "      <th>addcart_num</th>\n",
-       "      <th>delcart_num</th>\n",
-       "      <th>buy_num</th>\n",
-       "      <th>favor_num</th>\n",
-       "      <th>click_num</th>\n",
-       "      <th>buy_addcart_ratio</th>\n",
-       "      <th>buy_browse_ratio</th>\n",
-       "      <th>buy_click_ratio</th>\n",
-       "      <th>buy_favor_ratio</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>count</th>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "      <td>29,483.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>mean</th>\n",
-       "      <td>250,746.445</td>\n",
-       "      <td>2.914</td>\n",
-       "      <td>1.025</td>\n",
-       "      <td>4.272</td>\n",
-       "      <td>302.488</td>\n",
-       "      <td>10.525</td>\n",
-       "      <td>4.673</td>\n",
-       "      <td>1.637</td>\n",
-       "      <td>1.677</td>\n",
-       "      <td>486.653</td>\n",
-       "      <td>0.360</td>\n",
-       "      <td>0.018</td>\n",
-       "      <td>0.030</td>\n",
-       "      <td>0.862</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>std</th>\n",
-       "      <td>29,979.676</td>\n",
-       "      <td>1.490</td>\n",
-       "      <td>0.959</td>\n",
-       "      <td>0.808</td>\n",
-       "      <td>391.535</td>\n",
-       "      <td>14.301</td>\n",
-       "      <td>7.568</td>\n",
-       "      <td>1.412</td>\n",
-       "      <td>4.584</td>\n",
-       "      <td>658.671</td>\n",
-       "      <td>0.320</td>\n",
-       "      <td>0.038</td>\n",
-       "      <td>0.136</td>\n",
-       "      <td>0.287</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>min</th>\n",
-       "      <td>200,001.000</td>\n",
-       "      <td>-1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.004</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.010</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>25%</th>\n",
-       "      <td>225,058.500</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>4.000</td>\n",
-       "      <td>76.000</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>116.000</td>\n",
-       "      <td>0.118</td>\n",
-       "      <td>0.004</td>\n",
-       "      <td>0.002</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>50%</th>\n",
-       "      <td>249,144.000</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>4.000</td>\n",
-       "      <td>178.000</td>\n",
-       "      <td>6.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>282.000</td>\n",
-       "      <td>0.250</td>\n",
-       "      <td>0.008</td>\n",
-       "      <td>0.005</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>75%</th>\n",
-       "      <td>276,252.500</td>\n",
-       "      <td>4.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>5.000</td>\n",
-       "      <td>381.000</td>\n",
-       "      <td>13.000</td>\n",
-       "      <td>6.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>604.000</td>\n",
-       "      <td>0.500</td>\n",
-       "      <td>0.018</td>\n",
-       "      <td>0.012</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>max</th>\n",
-       "      <td>305,318.000</td>\n",
-       "      <td>6.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>5.000</td>\n",
-       "      <td>7,605.000</td>\n",
-       "      <td>288.000</td>\n",
-       "      <td>178.000</td>\n",
-       "      <td>50.000</td>\n",
-       "      <td>96.000</td>\n",
-       "      <td>15,302.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "          user_id        age        sex  user_lv_cd  browse_num  addcart_num  \\\n",
-       "count  29,483.000 29,483.000 29,483.000  29,483.000  29,483.000   29,483.000   \n",
-       "mean  250,746.445      2.914      1.025       4.272     302.488       10.525   \n",
-       "std    29,979.676      1.490      0.959       0.808     391.535       14.301   \n",
-       "min   200,001.000     -1.000      0.000       2.000       1.000        0.000   \n",
-       "25%   225,058.500      3.000      0.000       4.000      76.000        3.000   \n",
-       "50%   249,144.000      3.000      1.000       4.000     178.000        6.000   \n",
-       "75%   276,252.500      4.000      2.000       5.000     381.000       13.000   \n",
-       "max   305,318.000      6.000      2.000       5.000   7,605.000      288.000   \n",
-       "\n",
-       "       delcart_num    buy_num  favor_num  click_num  buy_addcart_ratio  \\\n",
-       "count   29,483.000 29,483.000 29,483.000 29,483.000         29,483.000   \n",
-       "mean         4.673      1.637      1.677    486.653              0.360   \n",
-       "std          7.568      1.412      4.584    658.671              0.320   \n",
-       "min          0.000      1.000      0.000      0.000              0.004   \n",
-       "25%          0.000      1.000      0.000    116.000              0.118   \n",
-       "50%          2.000      1.000      0.000    282.000              0.250   \n",
-       "75%          6.000      2.000      1.000    604.000              0.500   \n",
-       "max        178.000     50.000     96.000 15,302.000              1.000   \n",
-       "\n",
-       "       buy_browse_ratio  buy_click_ratio  buy_favor_ratio  \n",
-       "count        29,483.000       29,483.000       29,483.000  \n",
-       "mean              0.018            0.030            0.862  \n",
-       "std               0.038            0.136            0.287  \n",
-       "min               0.000            0.000            0.010  \n",
-       "25%               0.004            0.002            1.000  \n",
-       "50%               0.008            0.005            1.000  \n",
-       "75%               0.018            0.012            1.000  \n",
-       "max               1.000            1.000            1.000  "
-      ]
-     },
-     "execution_count": 29,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "df_user = df_user[df_user['buy_num']!=0]  # 只要有购买记录的\n",
-    "df_user.describe()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "删除爬虫及惰性用户\n",
-    "\n",
-    "由上表所知，浏览购买转换比和点击购买转换比均值为0.018,0.030，因此这里认为浏览购买转换比和点击购买转换比小于0.0005的用户为惰性用户"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 30,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "90\n"
-     ]
-    }
-   ],
-   "source": [
-    "bindex = df_user[df_user['buy_browse_ratio']<0.0005].index\n",
-    "print (len(bindex))\n",
-    "df_user.drop(bindex,axis=0,inplace=True)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 31,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "323\n"
-     ]
-    }
-   ],
-   "source": [
-    "cindex = df_user[df_user['buy_click_ratio']<0.0005].index\n",
-    "print (len(cindex))\n",
-    "df_user.drop(cindex,axis=0,inplace=True)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 32,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
-       "        vertical-align: top;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>user_id</th>\n",
-       "      <th>age</th>\n",
-       "      <th>sex</th>\n",
-       "      <th>user_lv_cd</th>\n",
-       "      <th>browse_num</th>\n",
-       "      <th>addcart_num</th>\n",
-       "      <th>delcart_num</th>\n",
-       "      <th>buy_num</th>\n",
-       "      <th>favor_num</th>\n",
-       "      <th>click_num</th>\n",
-       "      <th>buy_addcart_ratio</th>\n",
-       "      <th>buy_browse_ratio</th>\n",
-       "      <th>buy_click_ratio</th>\n",
-       "      <th>buy_favor_ratio</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>count</th>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "      <td>29,070.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>mean</th>\n",
-       "      <td>250,767.099</td>\n",
-       "      <td>2.910</td>\n",
-       "      <td>1.028</td>\n",
-       "      <td>4.268</td>\n",
-       "      <td>280.260</td>\n",
-       "      <td>10.145</td>\n",
-       "      <td>4.457</td>\n",
-       "      <td>1.644</td>\n",
-       "      <td>1.589</td>\n",
-       "      <td>447.113</td>\n",
-       "      <td>0.364</td>\n",
-       "      <td>0.019</td>\n",
-       "      <td>0.031</td>\n",
-       "      <td>0.866</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>std</th>\n",
-       "      <td>29,998.870</td>\n",
-       "      <td>1.492</td>\n",
-       "      <td>0.959</td>\n",
-       "      <td>0.809</td>\n",
-       "      <td>325.129</td>\n",
-       "      <td>13.443</td>\n",
-       "      <td>6.998</td>\n",
-       "      <td>1.420</td>\n",
-       "      <td>4.294</td>\n",
-       "      <td>530.994</td>\n",
-       "      <td>0.320</td>\n",
-       "      <td>0.038</td>\n",
-       "      <td>0.137</td>\n",
-       "      <td>0.282</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>min</th>\n",
-       "      <td>200,001.000</td>\n",
-       "      <td>-1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>0.004</td>\n",
-       "      <td>0.001</td>\n",
-       "      <td>0.001</td>\n",
-       "      <td>0.018</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>25%</th>\n",
-       "      <td>225,036.000</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>4.000</td>\n",
-       "      <td>75.000</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>114.000</td>\n",
-       "      <td>0.125</td>\n",
-       "      <td>0.004</td>\n",
-       "      <td>0.002</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>50%</th>\n",
-       "      <td>249,200.500</td>\n",
-       "      <td>3.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>4.000</td>\n",
-       "      <td>174.000</td>\n",
-       "      <td>6.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>0.000</td>\n",
-       "      <td>275.000</td>\n",
-       "      <td>0.250</td>\n",
-       "      <td>0.008</td>\n",
-       "      <td>0.005</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>75%</th>\n",
-       "      <td>276,284.000</td>\n",
-       "      <td>4.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>5.000</td>\n",
-       "      <td>366.000</td>\n",
-       "      <td>13.000</td>\n",
-       "      <td>6.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>585.000</td>\n",
-       "      <td>0.500</td>\n",
-       "      <td>0.018</td>\n",
-       "      <td>0.012</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>max</th>\n",
-       "      <td>305,318.000</td>\n",
-       "      <td>6.000</td>\n",
-       "      <td>2.000</td>\n",
-       "      <td>5.000</td>\n",
-       "      <td>5,007.000</td>\n",
-       "      <td>288.000</td>\n",
-       "      <td>158.000</td>\n",
-       "      <td>50.000</td>\n",
-       "      <td>69.000</td>\n",
-       "      <td>8,156.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>1.000</td>\n",
-       "      <td>1.000</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "          user_id        age        sex  user_lv_cd  browse_num  addcart_num  \\\n",
-       "count  29,070.000 29,070.000 29,070.000  29,070.000  29,070.000   29,070.000   \n",
-       "mean  250,767.099      2.910      1.028       4.268     280.260       10.145   \n",
-       "std    29,998.870      1.492      0.959       0.809     325.129       13.443   \n",
-       "min   200,001.000     -1.000      0.000       2.000       1.000        0.000   \n",
-       "25%   225,036.000      3.000      0.000       4.000      75.000        3.000   \n",
-       "50%   249,200.500      3.000      1.000       4.000     174.000        6.000   \n",
-       "75%   276,284.000      4.000      2.000       5.000     366.000       13.000   \n",
-       "max   305,318.000      6.000      2.000       5.000   5,007.000      288.000   \n",
-       "\n",
-       "       delcart_num    buy_num  favor_num  click_num  buy_addcart_ratio  \\\n",
-       "count   29,070.000 29,070.000 29,070.000 29,070.000         29,070.000   \n",
-       "mean         4.457      1.644      1.589    447.113              0.364   \n",
-       "std          6.998      1.420      4.294    530.994              0.320   \n",
-       "min          0.000      1.000      0.000      0.000              0.004   \n",
-       "25%          0.000      1.000      0.000    114.000              0.125   \n",
-       "50%          2.000      1.000      0.000    275.000              0.250   \n",
-       "75%          6.000      2.000      1.000    585.000              0.500   \n",
-       "max        158.000     50.000     69.000  8,156.000              1.000   \n",
-       "\n",
-       "       buy_browse_ratio  buy_click_ratio  buy_favor_ratio  \n",
-       "count        29,070.000       29,070.000       29,070.000  \n",
-       "mean              0.019            0.031            0.866  \n",
-       "std               0.038            0.137            0.282  \n",
-       "min               0.001            0.001            0.018  \n",
-       "25%               0.004            0.002            1.000  \n",
-       "50%               0.008            0.005            1.000  \n",
-       "75%               0.018            0.012            1.000  \n",
-       "max               1.000            1.000            1.000  "
-      ]
-     },
-     "execution_count": 32,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "df_user.describe()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 33,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "df_user.to_csv(\"data/JData_FUser.csv\", index=None)"
-   ]
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.7.3"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 2
-}