[R-sig-ME] lme4 upgrade broke my old code?

Stuart Luppescu lupp at uchicago.edu
Tue Mar 17 19:24:27 CET 2015

On Tue, 2015-03-17 at 13:27 -0400, Ben Bolker wrote:
> I think that starting with version 1, lme4 was not compatible with
> > the lower version code. I am afraid that you will have to calculate
> > the old models again with the newer lme4.
> > 
> > Cheers,
> > 
> > Marko
>   There is some help here.  If you install the lme4.0 package (see the
> README at https://github.com/lme4/lme4 ) you can at least use
> convert_old_lme4() to update lme4 pre 1.0 to lme4.0  ...  We don't
> currently have a function to convert stuff that old to modern lme4
> (lots of the internal structures have changed), but if you want to
> badly enough you can use lme4.0 ...

That's what I was afraid of. Thanks Marko and Ben. I'm rerunning it now
-- takes a long time with 2.5 million observations.

Stuart Luppescu -=-=- slu <AT> ccsr <DOT> uchicago <DOT> edu
CCSR at U of C ,.;-*^*-;.,  ccsr.uchicago.edu
     (^_^)/    才文と智奈美の父
[Crash programs] fail because they are based on the theory that, 
with nine women pregnant, you can get a baby a month.
                -- Wernher von Braun

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