If you're installing packages to the default location in your home account and you didn't remove those library folders, you still have you R 3.4 package installs there, e.g.
> dir(dirname(.libPaths()[1]), full.names = TRUE) [1] "/home/hb/R/x86_64-pc-linux-gnu-library/3.4" [2] "/home/hb/R/x86_64-pc-linux-gnu-library/3.5" [3] "/home/hb/R/x86_64-pc-linux-gnu-library/3.6" /Henrik On Thu, Apr 26, 2018 at 11:41 AM, Akhilesh Singh <akhileshsingh.i...@gmail.com> wrote: > You are right. I do take backups. But, this time I was too sure that > nothing will go wrong. But, this was over-confidence. I need to take more > care in future. Thanks anyway. > > With regards, > > Dr. A.K. Singh > > On Thu 26 Apr, 2018, 11:49 PM Duncan Murdoch, <murdoch.dun...@gmail.com> > wrote: > >> On 26/04/2018 1:54 PM, Akhilesh Singh wrote: >> > My thanks to Dr. John Fox and Dr. Duncan Murdoch. But, I have upgraded >> > all my R-3.4.3 libraries to R-3.5.0, and I have not backed-up copies of >> > old version. So, I would give a try each to the solutions suggested by >> > John Fox and Dengan Murdoch. >> >> Here is some unsolicited advice: I would strongly recommend that you >> make it a higher priority to have backups available. In my experience >> computer hardware is becoming quite reliable, but software isn't, and >> the person next to the keyboard isn't either. (My last desperate need >> for a backup was due to a hardware failure 2 years ago, but it wasn't >> the manufacturer's fault: my laptop accidentally drowned.) >> >> Backups can save you a lot of grief in the event of a mistake, or a >> software or hardware failure. But even in the case of routine events >> like software updates that don't go as planned, they can save time. >> >> Duncan Murdoch >> >> >> > >> > With regards, >> > >> > Dr. A.K. Singh >> > >> > On Thu 26 Apr, 2018, 9:44 PM Duncan Murdoch, <murdoch.dun...@gmail.com >> > <mailto:murdoch.dun...@gmail.com>> wrote: >> > >> > On 26/04/2018 10:33 AM, Fox, John wrote: >> > > Dear A.K. Singh, >> > > >> > > As you discovered, the data.table package has an error under R >> > 3.5.0 that prevents CRAN from distributing a Windows binary for the >> > package. The reason that you weren't able to install the package >> > from source is apparently that you haven't installed the R >> > package-building tools for Windows. See >> > <https://cran.r-project.org/bin/windows/Rtools/>. >> > > >> > > Because a number of users of my Rcmdr and car packages have >> > contacted me with a similar issue, as a temporary work-around I've >> > placed a Windows binary for the data.table package on my website at >> > < >> https://socialsciences.mcmaster.ca/jfox/.Pickup/data.table_1.10.4-3.zip>. >> > You should be able to install the package from there via the command >> > > >> > > >> > install.packages(" >> https://socialsciences.mcmaster.ca/jfox/.Pickup/data.table_1.10.4-3.zip", >> repos=NULL, type="win.binary") >> > > >> > > I expect that this problem will go away when the maintainer of >> > the data.table package fixes the error. >> > >> > You can see the errors in the package on this web page: >> > >> > https://cloud.r-project.org/web/checks/check_results_data.table.html >> > >> > Currently it is failing self-tests on all platforms except r-oldrel, >> > which is the previous release of R. I'd recommend backing out of R >> > 3.5.0 and going to R 3.4.4 if that's a possibility for you. >> > >> > Yet another possibility is to use a version of data.table from >> Github, >> > which is newer than the version on CRAN and may have fixed the >> errors, >> > but that would require an installation from source, which not every >> > Windows user is comfortable with. >> > >> > Duncan Murdoch >> > >> > >> > On 26-Apr-2018 9:44 PM, "Duncan Murdoch" <murdoch.dun...@gmail.com >> > <mailto:murdoch.dun...@gmail.com>> wrote: >> > >> > On 26/04/2018 10:33 AM, Fox, John wrote: >> > > Dear A.K. Singh, >> > > >> > > As you discovered, the data.table package has an error under R >> > 3.5.0 that prevents CRAN from distributing a Windows binary for the >> > package. The reason that you weren't able to install the package >> > from source is apparently that you haven't installed the R >> > package-building tools for Windows. See >> > <https://cran.r-project.org/bin/windows/Rtools/>. >> > > >> > > Because a number of users of my Rcmdr and car packages have >> > contacted me with a similar issue, as a temporary work-around I've >> > placed a Windows binary for the data.table package on my website at >> > < >> https://socialsciences.mcmaster.ca/jfox/.Pickup/data.table_1.10.4-3.zip>. >> > You should be able to install the package from there via the command >> > > >> > > >> > install.packages(" >> https://socialsciences.mcmaster.ca/jfox/.Pickup/data.table_1.10.4-3.zip", >> repos=NULL, type="win.binary") >> > > >> > > I expect that this problem will go away when the maintainer of >> > the data.table package fixes the error. >> > >> > You can see the errors in the package on this web page: >> > >> > https://cloud.r-project.org/web/checks/check_results_data.table.html >> > >> > Currently it is failing self-tests on all platforms except r-oldrel, >> > which is the previous release of R. I'd recommend backing out of R >> > 3.5.0 and going to R 3.4.4 if that's a possibility for you. >> > >> > Yet another possibility is to use a version of data.table from >> Github, >> > which is newer than the version on CRAN and may have fixed the >> errors, >> > but that would require an installation from source, which not every >> > Windows user is comfortable with. >> > >> > >> > Duncan Murdoch >> > >> > >> >> > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.