[R] Latest revision of lme4 requires 'Matrix' >= 0.995.2 but that version is not available on CRAN

[Uwe Ligges]

Søren Højsgaard wrote:

> We (Doug, Martin and I) are trying hard to debug an error in Matrix. 
> Martin and Doug have ideas for a bugfix and I am checking right now.
> 
> The latest version of Matrix that passed the checks was
> Matrix_0.995-1 which is still available from 
> http://cran.r-project.org/bin/windows/contrib/2.2/last/
> 
> The error was also present in Matrix_0.995-1, but in that case (and
> by chance) it did not cause a crash during the examples or tests
> (what happens for Matrix_0.995-2 under Windows).
> 
> Uwe Ligges
> 
> 
> ----
> 
> 
> Dear Uwe,
> 
> Thats fine, but what puzzles me is that a new lme4-version can go on
> CRAN when it can not run under windows... ?

Yes, but implementing this would require an even higher computational 
effort to build and check Windows binary packages.

Since it looks like the Matrix problems are persisting, I will play back 
the "old" versions of both packages to CRAN shortly.

Uwe



> Anyway, that sort of things happen... I've now downloaded the
> previous version of lme4 as a tar.gz file - and that works. I wonder
> if it would be an idea to have a function rollback('pkg-name') for
> that sort of situations???
> 
> Best regards
> 
> Søren Højsgaard
> 
> 
> 
> 
> 
> Moreover, now that I have updated to the latest release of lme4, I
> wonder how to get get a version of lme4 that actually works with the
> version of Matrix which is currently available.
> 
> 
> 
> 
> 
>