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
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