Search notes:

R function: help

help gets help on an R function.
# help( function name )

help(help)

help(help, help_type="text")
help(help, help_type="html")
help(help, help_type="pdf" )

# Get help for a package
help(package="nnet")

# Shortcut:
#  help can be abbreviated with a question mark:
?ls
Github repository about-r, path: /functions/help.R
help can be abbreviated with a question mark:
?ls

See also

Getting help in R
Index to (some) R functions
R function: vignette

Index