[R] Loading multiple packages with install.packages()...

Ebert,Timothy Aaron
Mon, 23 Sep 2024 16:40:11 -0000

If you can get a vector with all the package names (I do not know how to do
this) then you could do something like this;
# Function to check and install missing packages
install_if_missing <- function(pkg) {
  if (!require(pkg, character.only = TRUE)) {
    install.packages(pkg, dependencies = TRUE)
  }
  library(pkg, character.only = TRUE)
}
# List of required packages.
packages <- c("emmeans", "multcomp",
"sandwich", "multcompView", "ggplot2",
"stringr", "dplyr", "openxlsx", "tidyr")
# Check and install each package
lapply(packages, install_if_missing)


Regards,
Tim
-----Original Message-----
From: R-help <r-help-bounces at r-project.org> On Behalf Of Brian Lunergan
Sent: Monday, September 23, 2024 12:35 PM
To: r-help at r-project.org
Subject: [R] Loading multiple packages with install.packages()...

[External Email]

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Hi folks:

Curious question. I've added Rcmdr to my setup (R 4.4.1). I would like to
add all of the plugins. Is there a way to get install.packages() to gather up
everything starting 'rcmdrplugin', or do I have to list each package
individually between the brackets?? ??

Regards...
- --
Brian Lunergan
Russell, Ontario
Canada

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