needsPackages: Check for and optionally install packages used by document.

In patchDVI: Package to Patch '.dvi' or '.synctex' Files

Check for and optionally install packages used by document.

Description

This function checks for needed packages

Usage

needsPackages(pkgs, install = TRUE, 
                    update = FALSE, 
                    load = FALSE, 
                    attach = FALSE)

Arguments

pkgs	A list of names of packages to check.
install	Whether to install missing packages.
update	Whether to update all packages that can be updated.
load	Whether to load namespaces for packages.
attach	Whether to run library calls.

Details

Each of the boolean arguments can be a vector of the same length as pkgs, applying separately to each entry.

Value

Called for the side effects.

Examples

# This shouldn't do anything, as patchDVI must already be
# installed!
needsPackages("patchDVI")

patchDVI documentation built on March 31, 2023, 11:34 p.m.