install.packages("ldatuning", repos='http://cran.us.r-project.org')
install.packages("topicomodels", repos='http://cran.us.r-project.org')
install.packages("lubridate", repos='http://cran.us.r-project.org')
install.packages("topicdoc", repos='http://cran.us.r-project.org')
install.packages("stm", repos='http://cran.us.r-project.org')
install.packages("igraph", repos='http://cran.us.r-project.org')
devtools::install_github("cpsievert/LDAvis")
install.packages("servr", repos='http://cran.us.r-project.org')
devtools::install_github("mroberts/stmBrowser",dependencies=TRUE)
install.packages("wordcloud", repos='http://cran.us.r-project.org')
install.packages("dplyr", repos='http://cran.us.r-project.org')
install.packages("gridExtra", repos='http://cran.us.r-project.org')
install.packages("syuzhet", repos='http://cran.us.r-project.org')
install.packages ("reshape2", repos='http://cran.us.r-project.org')
install.packages ("tm", repos='http://cran.us.r-project.org')
install.packages ("plyr", repos='http://cran.us.r-project.org’)
install.packages("newsmap", repos='http://cran.us.r-project.org') 
install.packages("magrittr", repos='http://cran.us.r-project.org')
devtools::install_github("keyATM/keyATM", ref = "v0.4.0")