install.packages("ggplot2")
install.packages("MASS")
install.packages("data.table")
install.packages("stargazer")
#install.packages("GGally")
install.packages("mlbench")
install.packages("rvest")

library(ggplot2)
library(MASS)
library(data.table)
library(stargazer)
#library(GGally)
#library(rvest)
#library(mlbench)