Load multiple packages at the same time in R

Load-Multiple-R-Packages.R

# library() or require() only load one package at a time
# but...

Packages <- c("dplyr", "ggplot2", "rstan", "readr")

lapply(Packages, library, character.only = TRUE)

# this loads as many as you put in 'Packages'. They need to be installed first, of course.

If one is too lazy to "".

load_pkg <- rlang::quos(tidyverse, tidylog, lubridate, readxl, janitor, tictoc)

invisible(lapply(lapply(load_pkg, rlang::quo_name),
  library,
  character.only = TRUE
))

@leungi Haha, laziness is always good!

Actually, I use Yihui's xfun package for this now. As per the documentation:

pkg_attach() is a vectorized version of library() over the package argument to attach multiple packages in a single function call.

xfun::pkg_attach(<pkgs>)

Where <pkgs> is character vector of package names. Super lazy :-)

Thanks for tip @RobertMyles 👍

I usually use pacman::p_load(), but just realized during RStudio Connect deployment, it'll attempt to re-install every packages, regardless if it's installed or not!

I checked xfun::pkg_attach(), and it seems it has a check xfun::loadable(), which should avoid the above.

Thanks for the share! much convenient than pacman::