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Create Package Loader Function

Source: R/packageLoading.R
createPkgLoader.Rd

[Experimental]

This function creates a package loader function that can install and load packages from CRAN, Bioconductor, or GitHub, optionally displaying verbose output. This function can be useful in new R instances with little dependencies available.

The function takes the following arguments:

  • cran

  • bioc

  • gh

  • verbose

where cranandbioctake character vectors of package names on CRAN and Bioconductor, whileghtakes character vectors with the formattinggithubUsername/packageName. verbose` takes in a logical for whether to display additional informative messages in the REPL.

The function will not install packages that can already be loaded by default.

Usage

createPkgLoader(lib = .libPaths()[1])

Arguments

lib

A character vector specifying the library directory for package installation of the output function. Defaults to the current default package installation directory in .libPaths()[1]

Value

A function that installs and loads packages.

Examples

# Create the package loader function
loader <- createPkgLoader()

# # commented usage example
# loader(
#   cran = c("dplyr", "ggplot2"),
#   bioc = c("GenomicRanges", "Biobase"),
#   gh = c("tidyverse/dplyr"),
#   verbose = FALSE
# )