% File src/library/tools/man/getDepList.Rd % Part of the R package, http://www.R-project.org % Copyright 2008-2013 R Core Team % Distributed under GPL 2 or later \name{dependsOnPkgs} \alias{dependsOnPkgs} \title{Find Reverse Dependencies} \description{ Find \sQuote{reverse} dependencies of packages, that is those packages which depend on this one, and (optionally) so on recursively. } \usage{ dependsOnPkgs(pkgs, dependencies = c("Depends", "Imports", "LinkingTo"), recursive = TRUE, lib.loc = NULL, installed = installed.packages(lib.loc, fields = "Enhances")) } \arguments{ \item{pkgs}{a character vector of package names.} \item{dependencies}{a character vector listing the types of dependencies, a subset of \code{c("Depends", "Imports", "LinkingTo", "Suggests", "Enhances")}. Character string \code{"all"} is shorthand for that vector.} \item{recursive}{logical: should reverse dependencies of reverse dependencies (and so on) be included?} \item{lib.loc}{a character vector of \R library trees, or \code{NULL} for all known trees (see \code{\link{.libPaths}}).} \item{installed}{a result of calling \code{\link{installed.packages}}.} } \value{ A character vector of package names, which does not include any from \code{pkgs}. } % do not test as result depends if recommended packages are installed. \examples{ ## there are few dependencies in a vanilla R installation: ## lattice may not be installed dependsOnPkgs("lattice") } \keyword{utilities}