REPL

R comes with a full-featured interactive command-line REPL (read-eval-print loop) built into theR executable. In addition to allowing quick and easy evaluation of R statements, it has a searchable history, tab-completion, many helpful keybindings, and dedicated help ? and shell modes ;.

This page provides examples of using REPL on the command line.

R REPL Example

Type "module load r" in terminal to load the R module, then on a new line type "R" to launch R
In terminal, q() quits the R module

Terminal screen with R launched. > "Hello, World!" Output = "Hello, World!"; > word = "test" > typeof(word) Output = "character"; >nchar(word) Output = 4; >print(word) Output = "test"; > q()

R REPL Help Pages

Type "?" or help(function) to enter help pages within R's REPL
For example, to ask for help with linear functions in R, use help(lm) (output shown below)

Terminal screen with R launched. Output of command help(lm)

Resources

REPL Environment Help

PreviousInstallation NextBasic Syntax

Last updated 10 hours ago