On my Ubuntu server my default R version is 4.0.3.
I've installed R version 4.0.5 so i can then logon as root and install the rgdal package so that the libraries will be available to all users automatically.
My issue is that i do not know how to switch r version from 4.0.3 to 4.0.5 at Ubuntu terminal.
Is there an easy way to do this please?
Hi technocrat, thanks for your help.
The docs you've mentioned, seem to point to changing the default R version for use in Rstudio\Posit workbench (as far as i can tell).
I do not want to do that.
i want to change the R version at the Ubuntu Server terminal.
For eg, right now i logon to the server, change to the 'root' account and the type 'R' which gives me the R prompt and tells me i'm using version 4.0.3
I'd like to type 'R' from the server terminal and have it load the R version 4.0.5 which is also installed.
How did you install the different versions of R? Personally I find it easiest to use GitHub - r-lib/rig: The R Installation Manager, which allows for transparent installation of multiple version of R including selecting the default to use.
If you want to roll your own: The version of R available in the terminal depends on the value of the PATH environment variable. It determines the order in which different directories are being searched for any binary to run.
I installed the different version of R by following Posit's doc, Posit - Install R - Posit Documentation
Unfortunately, I don't know much about the GitHub method, as fairly new to this stuff.
I’m confused. Do you want multiple versions?
I already have multiple versions installed as shown in previous screenshot.
I simply want to load R version 4.0.5 from Ubuntu terminal so I can install packages as a root user.
Hi All
I've found the answer.
I simply needed to run the below from Ubuntu Server cmd:
Thanks for you help.
I'll probably look into using GitHub - r-lib/rig: The R Installation Manager, in the future, as this seems a better ongoing solution.
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