ispkginstalled:

In vlulla/vlutils: Common utilities that I find useful

Usage

ispkginstalled(pkgname)

Arguments

pkgname

Examples

##---- Should be DIRECTLY executable !! ----
##-- ==>  Define data, use random,
##--	or do  help(data=index)  for the standard data sets.

## The function is currently defined as
function (pkgname) 
{
    ischar <- tryCatch(is.character(pkgname) && length(pkgname) == 
        1L, error = identity)
    if (inherits(ischar, "error")) 
        ischar <- FALSE
    if (!ischar) 
        pkgname <- deparse(substitute(pkgname))
    pkgname %in% names(utils::installed.packages()[, "Package"])
  }

vlulla/vlutils documentation built on May 21, 2019, 12:35 a.m.