diff --git a/.Rhistory b/.Rhistory
index 672f44eed..4cb4ac453 100644
--- a/.Rhistory
+++ b/.Rhistory
@@ -13,3 +13,36 @@ install.packages("tidyverse")
 unloadNamespace("dplyr")
 detach(package:dplyr)
 unloadNamespace("dplyr")
+install.packages("tidymodels")
+install.packages("tidymodels")
+installed.packages("tidyverse")
+install.packages("tidyverse")
+install.packages("themis")
+install.packages("DataExplorer")
+install.packages("DataExplorer", version="0.8.2")
+installed.packages("DataExoplorer")
+install.packages("DataExplorer", version="0.8.2")
+install.packages("DataExplorer", version="0.8.2")
+library(DataExplorer)
+install.packages("igraph")
+library(DataExplorer)
+library(DataExplorer)
+install.packages("igraph")
+install.packages("DataExplorer", version="0.8.2")
+install.packages("DataExplorer")
+.libPaths()
+library(DataExplorer)
+remove.packages("DataExoplorer")
+install.packages("DataExplorer")
+install_github("boxuancui/DataExplorer")
+install.packages("devtools")
+library(devtools)
+install_github("boxuancui/DataExplorer")
+install.packages("igraph", repos = "https://cran.r-project.org")
+Sys.unsetenv("GITHUB_PAT")
+install.packages("igraph", repos = "https://cran.r-project.org")
+remotes::install_github("igraph/rigraph@master")
+Sys.unsetenv("GITHUB_PAT")
+remotes::install_github("igraph/rigraph@master")
+install.packages('igraph')
+library(igraph)
diff --git a/2-Regression/1-Tools/README.md b/2-Regression/1-Tools/README.md
index 3273c80b3..912de1bc8 100644
--- a/2-Regression/1-Tools/README.md
+++ b/2-Regression/1-Tools/README.md
@@ -6,7 +6,7 @@
 
 ## [Pre-lecture quiz](https://gray-sand-07a10f403.1.azurestaticapps.net/quiz/9/)
 
-> ### [This lesson is available in R!](./solution/R/lesson_1-R.ipynb)
+> ### [This lesson is available in R!](./solution/R/lesson_1.html)
 
 ## Introduction
 
diff --git a/2-Regression/2-Data/README.md b/2-Regression/2-Data/README.md
index ac52372f5..69e8adaa7 100644
--- a/2-Regression/2-Data/README.md
+++ b/2-Regression/2-Data/README.md
@@ -6,7 +6,7 @@ Infographic by [Dasani Madipalli](https://twitter.com/dasani_decoded)
 
 ## [Pre-lecture quiz](https://gray-sand-07a10f403.1.azurestaticapps.net/quiz/11/)
 
-> ### [This lesson is available in R!](./solution/R/lesson_2-R.ipynb)
+> ### [This lesson is available in R!](./solution/R/lesson_2.html)
 
 ## Introduction
 
diff --git a/2-Regression/3-Linear/README.md b/2-Regression/3-Linear/README.md
index e90295aa1..c9060034f 100644
--- a/2-Regression/3-Linear/README.md
+++ b/2-Regression/3-Linear/README.md
@@ -4,7 +4,7 @@
 > Infographic by [Dasani Madipalli](https://twitter.com/dasani_decoded)
 ## [Pre-lecture quiz](https://gray-sand-07a10f403.1.azurestaticapps.net/quiz/13/)
 
-> ### [This lesson is available in R!](./solution/R/lesson_3-R.ipynb)
+> ### [This lesson is available in R!](./solution/R/lesson_3.html)
 ### Introduction 
 
 So far you have explored what regression is with sample data gathered from the pumpkin pricing dataset that we will use throughout this lesson. You have also visualized it using Matplotlib.
diff --git a/2-Regression/4-Logistic/README.md b/2-Regression/4-Logistic/README.md
index 43ca6aef3..321de9d59 100644
--- a/2-Regression/4-Logistic/README.md
+++ b/2-Regression/4-Logistic/README.md
@@ -4,7 +4,7 @@
 
 ## [Pre-lecture quiz](https://gray-sand-07a10f403.1.azurestaticapps.net/quiz/15/)
 
-> ### [This lesson is available in R!](./solution/R/lesson_4-R.ipynb)
+> ### [This lesson is available in R!](./solution/R/lesson_4.html)
 
 ## Introduction
 
diff --git a/4-Classification/1-Introduction/README.md b/4-Classification/1-Introduction/README.md
index 513fd09b4..da84c1886 100644
--- a/4-Classification/1-Introduction/README.md
+++ b/4-Classification/1-Introduction/README.md
@@ -21,7 +21,7 @@ Classification uses various algorithms to determine other ways of determining a
 
 ## [Pre-lecture quiz](https://gray-sand-07a10f403.1.azurestaticapps.net/quiz/19/)
 
-> ### [This lesson is available in R!](./solution/R/lesson_10-R.ipynb)
+> ### [This lesson is available in R!](./solution/R/lesson_10.html)
 
 ### Introduction