I just upgrade R to 3.1. I am wondering how to install all the packages I have installed in the previous version. I have 126 packages under R 3.0:
> length(list.files("/Library/Frameworks/R.framework/Versions/3.0/Resources/library"))
[1] 126
How could I transfer these packages under the new R 3.1, is it okay to copy the old library just to the new library path?