[R] S4 / operator "[" : Compatibility issue between lme4 and kml
Martin Maechler
maechler at stat.math.ethz.ch
Fri Jun 5 12:21:43 CEST 2015
>>>>> Martin Maechler <maechler at stat.math.ethz.ch>
>>>>> on Fri, 5 Jun 2015 11:33:46 +0200 writes:
>>>>> Christophe Genolini <cgenolin at u-paris10.fr>
>>>>> on Fri, 5 Jun 2015 00:36:42 -0700 writes:
>> Hi all,
>> There is a compatibility issue between the package 'lme4' and my package
>> 'kml'. I define the "[" operator. It works just fine in my package (1). If I
>> try to use the lme4 package, then it does no longer work (2). Moreover, it
>> has some kind of strange behavior (3). Do you know what is wrong? Any idea
>> of how I can correct that?
>> Here is a reproductible example, and the same code with the result follows.
> Dear Christophe,
> can you please specify the exact sessionInfo() ?
> (after loading both kml and lme4).
> 'Matrix' has been updated on CRAN very recently, and
> 'lme4' is about to be update very soon,
> so this *is* a somewhat interesting and important problem,
> but the exact versions of the packages *do* matter.
As a matter of fact,
1) the package versions don't seem to matter much.
2) lme4 is *not* involved directly:
Much worse, it is the 'Matrix' package.
If you replace 'lme4' by 'Matrix' in your code, you get the same
symptoms.
... I'm investigating ..
Martin
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