问题
I can't access many Bioconductor packages in R 3.1.1 and I am quite disappointed with that. How can I downgrade from R 3.1.1 to R 3.0.2 or to some other version?
Note that this solution is not good enough for me as I don't have any issues with Bioconductor installation.
回答1:
As point by @Deleet, this is FOR WINDOWS ONLY.
For the rest of the platforms, see: https://support.rstudio.com/hc/en-us/articles/200486138-Changing-R-versions-for-RStudio-desktop
Go to: Tools > Global Options > press the "Change" button (marked in Yellow) >
Select the version you want to use:
OK > OK > Apply > Restart R
回答2:
Although your problem is not clear enough, I think it could be similar to my current problem ... I am not able to install or use Bioconductor 3.0 packages inside Rkward 0.6.2 with R 3.1.1, but with previous versions of R there were no problems.
I do not know the reasons for this problem, but when I tried to install Bioconductor inside a console (xterm for example, I am using Debian 8.0) there were no problems at all.
I used
source("http://bioconductor.org/biocLite.R")
biocLite()
and it worked fine.
I hope it is useful for you.
来源：https://stackoverflow.com/questions/24913643/downgrade-r-version-no-issues-with-bioconductor-installation