Install and load multiple R packages at once

ipak.R

# ipak function: install and load multiple R packages.
# check to see if packages are installed. Install them if they are not, then load them into the R session.

ipak <- function(pkg){
    new.pkg <- pkg[!(pkg %in% installed.packages()[, "Package"])]
    if (length(new.pkg)) 
        install.packages(new.pkg, dependencies = TRUE)
    sapply(pkg, require, character.only = TRUE)
}

# usage
packages <- c("ggplot2", "plyr", "reshape2", "RColorBrewer", "scales", "grid")
ipak(packages)

I've been using this for a few years now and just though that it might be cool if there could be a version of this that uses install_github or any of the devtools::install_ for packages as I find myself using this most often for my work.

I will try and figure out how to do that but I don't have much time to dedicate to it which is why I am tossing the idea out here for anyone else to tackle if they think they can do it!

Agian, thank you @stevenworthington for speeding up my workflow with this function 😄

Cheers!

EDIT:

Well I procrastinated at work and made a version of this that does this now found here. I haven't tested it for options other than install_method = "github" and install_method = "base" so feel free to check it out and change it as needed!

Thanks bro!

Thanks for this 👍

Just Awesome!!!! Thanks a lot

Thank you for this!

Awesome!!

Very useful function. Thanks for sharing this!

I love this function!! Made an edit to install and/or load GitHub packages

ipak_gh <- function(pkg){
    new.pkg <- pkg[!(sub('.*/', '', pkg) %in% installed.packages()[, "Package"])]
    if (length(new.pkg)) 
        remotes::install_github(new.pkg, dependencies = TRUE)
    sapply(sub('.*/', '', pkg), require, character.only = TRUE)
}

# Example
ipak_gh(c("lmullen/gender", "mtennekes/tmap", "jalvesaq/colorout", "timathomas/neighborhood", "arthurgailes/rsegregation"))

Another person happy thanks to you.
Thanks a lot.