install.packages(c( "ISLR", "Lahman", "MASS", "RColorBrewer", "ROCR", "broom", "caTools", "class", "cowplot", "cvTools", "gapminder", "janeaustenr", "lubridate", "nycflights13", "randomForest", "readr", "rvest", "stringr", "tidyr", "tidytext", "tidyverse", "rpart", "caret"), repos="https://cran.rstudio.com" )