Since the recent update to package lme4, I now get an error when
trying to
print the results using lmer to obtain model estimates for anything other
than a liner mixed model. For example,
(fm1 <- lmer(decrease ~ treatment + (1|rowpos) +
(1|colpos),family=poisson(),
data=OrchardSprays))
Produces the error:
Error in checkSlotAssignment(object, name, value) : Assignment
of an object of class "NULL" is not valid for slot
"frame" in an object of class "summary.lmer"; is(value, "data.frame")
is not
TRUE
Error in show(new("summary.lmer", object, useScale = TRUE,
showCorrelation =
FALSE)) : Unable to find the argument "object" in selecting a
method for
function "show"
Yes, the recent version has also some inconsistancy with the mlmRev
package, perhaps a bug .... Doug Bates certainly knows better.
Version 0.95-1 has not had this problem (but others, I think).
If you want to "downgrade" for the meantime,
check out CRAN/bin/windows/contrib/2.0/last/
with "old" versions of Matrix, lme4 and friends.
Uwe Ligges
My version information:
platform i386-pc-mingw32
arch i386 os mingw32 system i386,
mingw32 status major 2 minor
0.1 year 2004 month 11
day 15 language R
Any help greately appreciated!