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Remove all user installed packages from R
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# Shamlessly stolen from: | |
# https://www.r-bloggers.com/how-to-remove-all-user-installed-packages-in-r/ | |
# create a list of all installed packages | |
ip <- as.data.frame(installed.packages()) | |
head(ip) | |
# if you use MRO, make sure that no packages in this library will be removed | |
ip <- subset(ip, !grepl("MRO", ip$LibPath)) | |
# we don't want to remove base or recommended packages either\ | |
ip <- ip[!(ip[,"Priority"] %in% c("base", "recommended")),] | |
# determine the library where the packages are installed | |
path.lib <- unique(ip$LibPath) | |
# create a vector with all the names of the packages you want to remove | |
pkgs.to.remove <- ip[,1] | |
head(pkgs.to.remove) | |
# remove the packages | |
sapply(pkgs.to.remove, remove.packages, lib = path.lib) | |
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