[R] ubuntu system refuses to update packages

[Leon Yee]

Vincent Goulet wrote:
>>
>> It seems that R2.8.0 for gutsy is built on a system with tcl8.5 and 
>> tk8.5, which is not available in gutsy?
> 
>  From the CRAN Ubuntu README:
> 
>  >>>
> Installation and compilation of R or some its packages may require 
> Ubuntu packages from the "backports" repositories. In particular, this 
> is the case for Tcl/Tk 8.5 on Gutsy and Hardy. Therefore, it is 
> suggested to activate the backports repositories with an entry like
> 
> deb http://<my.favorite.ubuntu.mirror>/ hardy-backports main restricted 
> universe
> 
> in your /etc/apt/sources.list file. See 
> http://www.ubuntu.com/getubuntu/downloadmirrors for the list of Ubuntu 
> mirrors.
> <<<

Hi, Vincent

    Thanks for pointing out this. I have now solved the problem  and 
updated to R 2.8.0.

Cheers,
Leon