[R-sig-ME] Is anyone using the lmList() function in the lme4 package?

Douglas Bates bates at stat.wisc.edu
Sat Jun 26 18:34:41 CEST 2010

When we wrote the nlme package we tried to be very careful about
starting estimates and created the lmList function to allow evaluation
of coefficients from within-group linear fits.  It turns out that it
is most useful for longitudinal data where there are enough
observations on each subject to do within-subject fits; that is, for
data like the sleepstudy data.  Subsequent developments have made it
easy enough to fit the mixed model reliably without needing a lot of
preliminary work to get starting estimates.  (Similarly, the
groupedData class was a good idea at the time but no longer

Would anyone miss the lmList function if it was removed from future
versions of lme4?

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