[R-sig-ME] When is sparseX implementation expected?

Ben Bolker bbolker at gmail.com
Tue Oct 15 15:05:58 CEST 2013


Pete Meyer <petemeyer at ...> writes:

> 
> For some of our large models (>= 5k factor levels) I found that sparseX in
> lme4a (under R 2.14.2) made a big difference in compute time.  I see that
> it isn't yet implemented for this update to lme4.  Any idea how long it
> will be until it is available again?
> 

  It has not been near the top of the priority list.  We have looked
at it and thought (more or less) "oh, that shouldn't be *too hard*,
but it looks somewhat annoying" -- see https://github.com/lme4/lme4/issues/6
If you want to chime in on the issues list that might help push the
priority up slightly.

  cheers
    Ben Bolker



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