Hi, I have a little problem with the installation of a new packages. The installation of R software is correct, but my server required authentication for use it, and for load a new package directly from R it is not possible. Is there a code or process for server authentication (put my login and password) in R for download directly the packages? The best regards, -- Luis Antonio Garavito Facultad de IngenierĂa Universidad Nacional de Colombia Te. 3165000 Ext. 13525 [[alternative HTML version deleted]]