R Packages: Difference between revisions
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Created page with 'To use a package, it must first be installed on the system. Then you load it into your current session. To get the list of packages loaded by default: <pre> > getOption("defaul…' |
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<pre> | <pre> | ||
(.packages(all.available=TRUE)) | (.packages(all.available=TRUE)) | ||
</pre> | |||
To install a package: | |||
<pre> | |||
install.packages("pkg1") # for a single package | |||
install.packages(c("pkg1", "pkg2")) # for multiple packages | |||
</pre> | </pre> | ||
Revision as of 17:06, 16 September 2015
To use a package, it must first be installed on the system. Then you load it into your current session.
To get the list of packages loaded by default:
> getOption("defaultPackages")
To see the list of currently loaded packages:
> (.packages())
To show all available packages:
(.packages(all.available=TRUE))
To install a package:
install.packages("pkg1") # for a single package
install.packages(c("pkg1", "pkg2")) # for multiple packages
To load a package:
> library(rpart)