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 ?
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 ?