Display a partial or complete directory of a package. By default, suppress common package contents to focus on 'demo', 'doc', 'scripts', and similar subdirectories whose contents might contain examples that could make it easier to learn capabilities of the package.
package.dir(package = 'base', lib.loc = NULL,
exclude = c('chtml', 'data', 'help', 'html', 'latex', 'libs',
'man', 'Meta', 'po', 'R', 'R-ex', 'src'),
include = NULL, pattern = NULL, recursive = FALSE)If recursive, a list of the contents of the subdirectories of interest. Else, a character vector of the names of the relevant subdirectories.
character string naming a locally installed package. If 'package' is not locally installed, it is an error.
a character vector with path names of R libraries, or 'NULL'. The default value of 'NULL' corresponds to all libraries currently known. If the default is used, the loaded packages are searched before the libraries.
either NULL or a character vector naming subdirectories of 'package' to exclude from the list. If 'include' is not NULL, 'exclude' is ignored.
either NULL or a character vector naming subdirectories of 'package' to exclude from the list. If 'include' is not NULL, 'exclude is ignored.
an optional regular expression passed with the results of system.file to dir. Only file names which match the regular expression will be returned. This is ignored if 'recursive' is FALSE.
logical. Should the listing recurse into subdirectories?
Spencer Graves
1. fullPath <- system.file(package = package, lib.loc = lib.loc)
2. Dir <- dir(fullPath)
3. Restrict Dir only to 'include' if provided and to all but 'exclude' otherwise.
4. If recursive, return a list produced by dir for each
of the subdirectories of interest determined in step 3. Else, return
only the list of subdirectories from step 3.
package.dir() # 'demo'
package.dir(recursive = TRUE) # contents of 'demo'
package.dir('nlme') # 'mlbook', 'scripts'
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