agdamsbo

# check.packages function: install and load multiple R packages.
# Check to see if packages are installed. Install them if they are not, then load them into the R session.
# Supplied repo to be used with RScript in terminal
check.packages <- function(pkg){
  new.pkg <- pkg[!(pkg %in% installed.packages()[, "Package"])]
  if (length(new.pkg)) 
    install.packages(new.pkg, dependencies = TRUE, repos=structure(c(CRAN="http://cloud.r-project.org/")))
  sapply(pkg, require, character.only = TRUE)
}