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| # step 1 (before) | |
| tmp <- installed.packages() | |
| installedpackages <- as.vector(tmp[is.na(tmp[,"Priority"]), 1]) | |
| save(installedpackages, file="installed_packages.rda") | |
| # now install new version of R | |
| # step 2 (after) | |
| load("installed_packages.rda") | |
| for(i in 1:length(installedpackages)){ | |
| install.packages(installedpackages[i]) | |
| } |
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