[R] a warning message from lmer

From: Lan Wei <lanwei_at_umich.edu>
Date: Sat, 12 Jul 2008 07:23:25 -0400

Hi all,

I have a problem when running lmer.
In my data set, Agree is a binary(0/1) response. WalkerID and ObsID is the identification number of the subjects. the description of the other variables are as follows:
> levels(regdat$Display)

[1] "Dynamic" "Static"
> levels(regdat$Survey)

[1] "HM1_A" "HM1_B" "HM1_C" "HM2_A" "HM2_B" "HM2_C" "ST_A" "ST_B" "ST_C"
> levels(regdat$Emotion)

[1] "aneu" "ang" "con" "joy" "joy " "sad"
> levels(regdat$ObsGender)

[1] "F" "M"
> levels(regdat$WalkerGender)

[1] "F" "M"

the watning is:

Warning message:
In mer_finalize(ans, verbose) : gr cannot be computed at initial par (65)

Does anybody have some hint to solve this problem? I'd very much appreciate it!

Lan Wei

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