[R-sig-ME] Error in lme.lmList (package nlme)

Ben Bolker bbolker at gmail.com
Fri Nov 9 05:09:22 CET 2012

Dan Bebber <dbebber at ...> writes:

> I am receiving an unusual error message from lme.lmList in the nlme package.
> The dataset is not huge (1265 observations of 31 groups), and I can send it to
others to check if required.
> The lmList call appears to work OK
> fm1 <- lmList(equdist ~ year |pest,  data)
> however, when I try
> fm2 <- lme(fm1)
> I get
> Error in names(madRan) <- rNames : attempt to set an attribute on NULL
> This is a new error (I ran the models successfully a few weeks ago).
> When I try
> example(lme.lmList)
> the error does not appear, so seems to be something to do with my data.

  A little hard to say without the data (or a small reproducible example).
I'm googlable if you want to send it to me.
  I think this method probably isn't very widely used so it's conceivable
(to me) that there's a bug, but it could be data that are messed up in
some way ... ?

  Ben Bolker

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