Getting help reference card

Adapted from Tom Short’s R Reference Card

Command Purpose
help(topic) documentation on topic
?topic the same as help(‘topic’)1)‘topic’) Search topic on the local help system
??topic the same as‘topic’)
RSiteSearch(‘topic’) Search topic on (needs an internet connection)
apropos(‘topic’) The names of the objects in the search list matching the regular expression topic
help.start() Start the HTML version of help
findFn(’topic’) In the sos package. Provides a powerful R interface to RSiteSearch() that returns results within R in a data frame. Searches all packages, not just locally installed ones. See

1) When dealing with special characters, and you are not working inside ESS, you have to enclose topic in quotes : ?”?” , ?”[[”
getting-started/reference-cards/getting-help.txt · Last modified: 2011/03/14 by amosfolarin
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