Dear Larry, yes, because of various factors the r-cran-* packages from the stable and especially the oldstable distribution are often not compatible with the backported r-base packages provided on CRAN. At current, buster is not affected, but your case shows that using stretch gives this problem.
In principle it would be nice to have a repo containing all the r-cran-* and r-bioc-* packages recompiled for these backports. Such a repository does exist for Ubuntu as far as I know (I don't use it). For Debian, such a repository currently does not exist. In your situation, I think the easiest solution is to simply install caret and ggplot2 from within R. Personally, I like the install.r and update.r scripts available from Dirks littler package. They make it possible to conveniently install and update R packages from source using the command line, if you have the scripts in your PATH. Kind regards, Johannes Am Mittwoch, 31. Juli 2019, 21:41:14 CEST schrieb Larry Martell: > I need to run 3.6 on debian stretch - I followed the instructions here: > > https://cran.r-project.org/bin/linux/debian/ > > and I was able to install it. But 2 packages I need, r-cran-caret and > r-cran-ggplot2 will not install: > > # apt-get install r-cran-ggplot2 > Reading package lists... Done > Building dependency tree > Reading state information... Done > Some packages could not be installed. This may mean that you have > requested an impossible situation or if you are using the unstable > distribution that some required packages have not yet been created > or been moved out of Incoming. > The following information may help to resolve the situation: > > The following packages have unmet dependencies: > r-cran-ggplot2 : Depends: r-api-3 > Depends: r-cran-digest but it is not going to be installed > Depends: r-cran-gtable (>= 0.1.1) but it is not > going to be installed > Depends: r-cran-plyr (>= 1.7.1) but it is not going > to be installed > Depends: r-cran-reshape2 but it is not going to be > installed Depends: r-cran-scales (>= 0.4.1) but it is not > going to be installed > Depends: r-cran-tibble but it is not going to be installed > Depends: r-cran-lazyeval but it is not going to be installed E: Unable to > correct problems, you have held broken packages. > > Is there a way to get these 2 packages for my environment? > > Thanks! > > _______________________________________________ > R-SIG-Debian mailing list > R-SIG-Debian@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-debian _______________________________________________ R-SIG-Debian mailing list R-SIG-Debian@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-debian