On 1/30/19 11:53 AM, Dirk Eddelbuettel wrote:
Rolf,
I think it may help to read-up on dpkg and apt. Instead of 'whereis' do
dpkg -l r-base-core
Now *that* was a revealing suggestion! I did that and got:
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-================-=============-=============-======================================
ii r-base-core 3.5.2-1bionic amd64 GNU R core of statistical computation
So indeed the installation had not actually been done.
The nature of the message prompted me to try
sudo apt purge r-base-core
which ran and said that it was removing a whole lot of stuff.
I then tried
sudo apt-get install r-base-core
which ran and gave a whole lot more output than was previously produced
when I ran "sudo apt-get install r-base". (Note: I had been typing
*r-base* and NOT *r-base-core*.) It indicated that it was doing lots of
stuff that looked promising in respect of actually *installing* R.
And in fact the promise was fulfilled. I then started R and got:
R version 3.5.2 (2018-12-20) -- "Eggshell Igloo"
Copyright (C) 2018 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)
Ta-da!!!
Was the problem essentially that I had been saying
"sudo apt-get install r-base" rather than
"sudo apt-get install r-base-core"?
Is it possible that the latter is needed if R has previously been
installed from source, but otherwise just "r-base" is sufficient?
If so, it might be useful to note this in the instructions in
https://cran.r-project.org/bin/linux/ubuntu/README.html
<SNIP>
Anyhow, I now seem to be out of the woods, at long last. Thanks for
setting me on the path.
cheers,
Rolf
--
Honorary Research Fellow
Department of Statistics
University of Auckland
Phone: +64-9-373-7599 ext. 88276
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