[BioC] Downgrading R to an older version

[Dan Tenenbaum]

----- Original Message -----
> From: "Chong Kim San Allen" <patcksa at nus.edu.sg>
> To: bioconductor at r-project.org
> Sent: Tuesday, August 12, 2014 10:43:16 PM
> Subject: [BioC] Downgrading R to an older version
> 
> Hi,
> My server is running Debian and the most stable version of R for
> Debian is 2.1.5. I decided to use "apititude install r-base=3.1.0"
> to install a backport version of R but that command just upgraded it
> to R 3.1.1. I don't know why it installed 3.1.1 instead of 3.1.0?
> 
> I have 2 software that I would like to run on my server: ChAMP and
> MeDIPS. It seems that ChAMP will not run on R 2.1.5 but is fine with
> R 3.1.1. The reverse is true for MeDIPS. I was told by someone that
> a compromise is to install R 3.1.0.


MeDIPS will run fine on R-3.1.1. If it's not working for you, please send the error message you are getting (and the line that causes it) and the output of the sessionInfo() command. 

> 
> I have tried to force Synaptic Package Manager to install R 3.1.0 by
> following the instructions on this webpage:
> 
> askubuntu.com/questions/292314/how-to-downgrade-packages-on-ubuntu
> 
> but no matter which mirror I use, I am told by Synaptic Package
> Manager that it cannot install R3.1.0 because of broken packages.  I
> have tried to use Synaptic Package Manager to fix the packages but
> it doesn't work.

> 
> So my question is:
> 
> 1) Can anyone suggest a way to downgrade to a working R 3.1.0? Maybe
> through a command line instruction
> or
> 2) Is there a way to get MeDIPS to work with R3.1.1

Again, let us know what problems you're having with MeDIPS on R-3.1.1. 

Dan


> 
> Thanks in advance for any help.
> 
> Allen
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