From 4dc4e8627be89fe2bbfcab9b226997e8f714b1aa Mon Sep 17 00:00:00 2001 From: benjas <909336740@qq.com> Date: Thu, 19 Nov 2020 22:22:40 +0800 Subject: [PATCH] =?UTF-8?q?Add=20python=E5=8D=A1=E6=96=B9=E6=A3=80?= =?UTF-8?q?=E9=AA=8C=E5=AE=9E=E4=BE=8B?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../python卡方检验实例-checkpoint.ipynb | 6 + .../python卡方检验实例.ipynb | 548 ++++++++++++++++++ .../us_job_market_discrimination.dta | Bin 0 -> 1086916 bytes 3 files changed, 554 insertions(+) create mode 100644 notebook_必备数学基础/假设检验章节/.ipynb_checkpoints/python卡方检验实例-checkpoint.ipynb create mode 100644 notebook_必备数学基础/假设检验章节/python卡方检验实例.ipynb create mode 100644 notebook_必备数学基础/假设检验章节/us_job_market_discrimination.dta diff --git a/notebook_必备数学基础/假设检验章节/.ipynb_checkpoints/python卡方检验实例-checkpoint.ipynb b/notebook_必备数学基础/假设检验章节/.ipynb_checkpoints/python卡方检验实例-checkpoint.ipynb new file mode 100644 index 0000000..2fd6442 --- /dev/null +++ b/notebook_必备数学基础/假设检验章节/.ipynb_checkpoints/python卡方检验实例-checkpoint.ipynb @@ -0,0 +1,6 @@ +{ + "cells": [], + "metadata": {}, + "nbformat": 4, + "nbformat_minor": 2 +} diff --git a/notebook_必备数学基础/假设检验章节/python卡方检验实例.ipynb b/notebook_必备数学基础/假设检验章节/python卡方检验实例.ipynb new file mode 100644 index 0000000..5f9b7c1 --- /dev/null +++ b/notebook_必备数学基础/假设检验章节/python卡方检验实例.ipynb @@ -0,0 +1,548 @@ +{ + "cells": [ + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "### 白人和黑人在求职路上会有种族的歧视吗？" + ] + }, + { + "cell_type": "code", + "execution_count": 2, + "metadata": {}, + "outputs": [], + "source": [ + "import pandas as pd\n", + "import numpy as np\n", + "from scipy import stats" + ] + }, + { + "cell_type": "code", + "execution_count": 3, + "metadata": {}, + "outputs": [ + { + "data": { + "text/html": [ + "
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" + ], + "text/plain": [ + " id ad education ofjobs yearsexp honors volunteer military empholes \\\n", + "0 b 1 4 2 6 0 0 0 1 \n", + "1 b 1 3 3 6 0 1 1 0 \n", + "2 b 1 4 1 6 0 0 0 0 \n", + "3 b 1 3 4 6 0 1 0 1 \n", + "4 b 1 3 3 22 0 0 0 0 \n", + "\n", + " occupspecific ... compreq orgreq manuf transcom bankreal trade \\\n", + "0 17 ... 1.0 0.0 1.0 0.0 0.0 0.0 \n", + "1 316 ... 1.0 0.0 1.0 0.0 0.0 0.0 \n", + "2 19 ... 1.0 0.0 1.0 0.0 0.0 0.0 \n", + "3 313 ... 1.0 0.0 1.0 0.0 0.0 0.0 \n", + "4 313 ... 1.0 1.0 0.0 0.0 0.0 0.0 \n", + "\n", + " busservice othservice missind ownership \n", + "0 0.0 0.0 0.0 \n", + "1 0.0 0.0 0.0 \n", + "2 0.0 0.0 0.0 \n", + "3 0.0 0.0 0.0 \n", + "4 0.0 1.0 0.0 Nonprofit \n", + "\n", + "[5 rows x 65 columns]" + ] + }, + "execution_count": 3, + "metadata": {}, + "output_type": "execute_result" + } + ], + "source": [ + "data = pd.io.stata.read_stata('us_job_market_discrimination.dta')\n", + "data.head()" + ] + }, + { + "cell_type": "code", + "execution_count": 4, + "metadata": {}, + "outputs": [], + "source": [ + "blacks = data[data.race=='b'] # 黑人\n", + "whites = data[data.race=='w'] # 白人" + ] + }, + { + "cell_type": "code", + "execution_count": 5, + "metadata": {}, + "outputs": [ + { + "data": { + "text/plain": [ + "count 2435.000000\n", + "mean 0.064476\n", + "std 0.245649\n", + "min 0.000000\n", + "25% 0.000000\n", + "50% 0.000000\n", + "75% 0.000000\n", + "max 1.000000\n", + "Name: call, dtype: float64" + ] + }, + "execution_count": 5, + "metadata": {}, + "output_type": "execute_result" + } + ], + "source": [ + "blacks.call.describe() # call为1则是被录取，为0则是不录取" + ] + }, + { + "cell_type": "code", + "execution_count": 7, + "metadata": {}, + "outputs": [ + { + "data": { + "text/plain": [ + "count 2435.000000\n", + "mean 0.096509\n", + "std 0.295346\n", + "min 0.000000\n", + "25% 0.000000\n", + "50% 0.000000\n", + "75% 0.000000\n", + "max 1.000000\n", + "Name: call, dtype: float64" + ] + }, + "execution_count": 7, + "metadata": {}, + "output_type": "execute_result" + } + ], + "source": [ + "whites.call.describe()" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "白人的录取均值更高，我们再查看其它的指标，确认是到底是不是因为肤色" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## 卡方检验\n", + "" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## 假设检验\n", + "