install.packages("e1071", repos='http://cran.us.r-project.org')
install.packages("caTools", repos='http://cran.us.r-project.org')
install.packages("randomForest", repos='http://cran.us.r-project.org')
install.packages('caret', repos='http://cran.us.r-project.org', dependencies = TRUE)
install.packages("naivebayes", repos='http://cran.us.r-project.org', dependencies = TRUE)
install.packages("car", repos='http://cran.us.r-project.org’)