General R command syntax
object <- function_name(arguments)
object <- object[arguments]
Finding help
?function_name
Load a library/package
library("my_library")
List functions defined by a library
library(help="my_library")
Load library manual (PDF or HTML file)
vignette("my_library")
Execute an R script from within R
source("my_script.R")
Execute an R script from command-line (the first of the three options is preferred)
$ Rscript my_script.R
$ R CMD BATCH my_script.R
$ R --slave < my_script.R