Continuing with this approach:
a1 <- available.packages()
packages <- grep("^rcmdrplugin", rownames(a1), ignore.case = TRUE, value
= TRUE)
missing_pkgs <- setdiff(packages, rownames(installed.packages()))
install.packages(missing_pkgs, dependencies = TRUE)
The pacman package also handles some of these "install only if not
already installed" tasks.
On 2024-09-23 12:40 p.m., Ebert,Timothy Aaron wrote:
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-boun...@r-project.org> On Behalf Of Brian Lunergan
Sent: Monday, September 23, 2024 12:35 PM
To: r-help@r-project.org
Subject: [R] Loading multiple packages with install.packages()...
[External Email]
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...
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--
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