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Very often, when I try to download a package, I've got the following message :
Warning in install.packages :
package ‘XXXX’ is not available (for R version 3.0.1)
Is it not possible to simulate an old version of R to use the package ?
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To update everything without any user intervention, use the ask = FALSE argument. If you only want to update a single package, the best way to do it is using install. packages() again. In RStudio, you can also manage packages using Tools -> Install Packages.
It shouldn't be an issue unless you install a package as an admin user, and again as a normal user. Then you will have a version in two different locations on your system. That could lead to issues when upgrading, or confusion as to which version is loaded.
Changing the configuration in R Studio to solve install packages issue. Go To Tools -> Global option -> Packages. Then uncheck the option “Use secure download method for HTTP”. For other RStudio issues refer to official Troubleshooting Guide here.
Try something like:
packageurl <- "http://cran.r-project.org/src/contrib/Archive/XXXX/XXXX_A.B.C.tar.gz"
install.packages(packageurl, contriburl=NULL, type="source")
where XXXX is your package name and A.B.C is the version of the package (not R).
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