load_or_install: Load or Install Packages.

In petersenlab: A Collection of R Functions by the Petersen Lab

Load or Install Packages.

Description

Loads packages or, if not already installed, installs and loads packages.

Usage

load_or_install(package_names, ...)

Arguments

package_names	Character vector of one or more package names.
...	Additional arguments for install.packages().

Details

Loads packages that are already installed, and if the packages are not already installed, it installs and then loads them.

Value

Loaded packages.

See Also

https://www.r-bloggers.com/2012/05/loading-andor-installing-packages-programmatically/ https://stackoverflow.com/questions/4090169/elegant-way-to-check-for-missing-packages-and-install-them

Other packages: getDependencies()

Examples

## Not run: 
old <- options("repos")
options(repos = "https://cran.r-project.org")
# Warning: the command below installs packages that are not already installed
load_or_install(c("tidyverse","nlme"))
options(old)

## End(Not run)

petersenlab documentation built on April 4, 2025, 12:22 a.m.