List of user-installed R packages and their versions
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This R command lists all the packages installed by the user (ignoring packages that come with R such as base and foreign) and the package versions.
ip <- as.data.frame(installed.packages()[,c(1,3:4)]) rownames(ip) <- NULL ip <- ip[is.na(ip$Priority),1:2,drop=FALSE] print(ip, row.names=FALSE)
Example output
Package Version
bitops 1.0-6
BradleyTerry2 1.0-6
brew 1.0-6
brglm 0.5-9
car 2.0-25
caret 6.0-47
coin 1.0-24
colorspace 1.2-6
crayon 1.2.1
devtools 1.8.0
dichromat 2.0-0
digest 0.6.8
earth 4.4.0
evaluate 0.7
[..snip..]
Tested with R 3.2.0.
This is a small step towards managing package versions: for a better solution, see the checkpoint package. You could also use the first column to reinstall user-installed R packages after an R upgrade.
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