| system.file {base} | R Documentation | 
Finds the full file names of files in packages etc.
system.file(..., pkg = .packages(), lib = .lib.loc)
... | 
character strings, specifying subdirectory and file(s)
within some package.
The default, none or "", returns the root of
package(s). Wildcards are not supported. | 
pkg | 
a character vector with package names. | 
lib | 
a character vector with path names of R package
libraries, see .lib.loc for the default. | 
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(pkg="lqs")   # The root of package `lqs'
system.file("INDEX")
system.file("help/AnIndex", pkg = c("stepfun", "mva"))