| system.file {base} | R Documentation | 
Finds the full file names of files in packages etc.
system.file(..., package = "base", lib.loc = NULL)
... | 
character strings, specifying subdirectory and file(s) within some package. The default, none, returns the root of the package. Wildcards are not supported. | 
package | 
a character string with the name of a single package. An error occurs if more than one package name is given. | 
lib.loc | 
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. | 
A character vector of positive length, containing the file names
that matched ..., or the empty string, "", if none
matched.  If matching the root of a package, there is no trailing
separator.
As a special case, system.file() gives the root of the
base package only.
system.file()                  # The root of the 'base' package
system.file(package = "stats") # The root of package 'stats'
system.file("INDEX")
system.file("help", "AnIndex", package = "splines")