Since R was upgraded to 3.6.1, R-studio also needs to be upgraded to a newer version (it's using a version from April 2018 I believe). The "??" help command is now broken in R-studio. It's R studio since I can go into the command prompt, run R and execute the "??" help command and it works as expected.
Alternatively, if there is a way to downgrade R to the prior version - 3.5.1?
Thanks.
| R2826 rstudio | |||
| R2826:7aa99b3359b0 Update to 1.2.5019 | |||
Can confirm your bug with the ?? command not working as expected within rstudio with R 3.6.1. I've updated rstudio to the latest version (1.2.1335) locally and the issue still persists with R 3.6.1. However, downgrading R to 3.5.1 the ?? command works as expected again. It should be noted however, the ?? command works as expected when running from the terminal with both R 3.5.1 and R 3.6.1.
To me this points to be an issue with rstudio but i'll have a look and see if there is anything missing from the packaging the would address it.
If the ?? command is _super_ important to you, you can manually degrade to 3.5.1 by running: sudo eopkg it https://packages.getsol.us/shannon/r/r/r-3.5.1-28-1-x86_64.eopkg. I don't give any guarantee this will work ad-infinitum.
Yes, the ?? command is not working within rstudio with R 3.6.1. However, the ?? command also gives different output between 3.5.1 and 3.6.1 - ??polr as an example. 3.5.1 finds all the results while 3.6.1 only find the results from MASS package for some reason. So I think it's may be from rstudio and R-3.6.1 potentially.
Tested this with R 3.6.1 and RStudio 1.2.1335 on Windows and can confirm the ?? command is busted there as well. As this is an upstream issue I recommend you filing an issue https://github.com/rstudio/rstudio/issues if one has not already been created for this bug.