Creates the directories, and adds version number

Usage

checkLibPaths(libPaths, ifMissing, exact = FALSE, ...)

libPaths: The library path (or libraries) where all packages should be installed, and looked for to load (i.e., call library). This can be used to create isolated, stand alone package installations, if used with standAlone = TRUE. Currently, the path supplied here will be prepended to .libPaths() (temporarily during this call) to Require if standAlone = FALSE or will set (temporarily) .libPaths() to c(libPaths, tail(libPaths(), 1) to keep base packages.
ifMissing: An alternative path if libPaths argument is missing.
exact: Logical. If FALSE, the default, then checkLibPaths will append the R version number on the libPaths supplied. If TRUE, checkLibPaths will return exactly the libPaths supplied.
...: Not used, but allows other functions to pass through arguments.