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2009 Apr 11
0
question related to fitting overdispersion count data using lmer quasipoisson
Dear R-helpers:
I have a question related to fitting overdispersed count data using lmer.
Basically, I simulate an overdispsed data set by adding an observation-level
normal random shock
into exp(....+rnorm()).
Then I fit a lmer quasipoisson model.
The estimation results are very off (see model output of fit.lmer.over.quasi
below).
Can someone kindly explai...
2009 Apr 11
0
Sean / Re: question related to fitting overdispersion count data using lmer quasipoisson
...t.
If you have the answer to the following question, please let me know.
If you have chance to travel up north. let me know.
best,
-Sean
---------- Forwarded message ----------
From: Sean Zhang <seanecon@gmail.com>
Date: Sat, Apr 11, 2009 at 12:12 PM
Subject: question related to fitting overdispersion count data using lmer
quasipoisson
To: r-help@r-project.org
Cc: seanecon@gmail.com
Dear R-helpers:
I have a question related to fitting overdispersed count data using lmer.
Basically, I simulate an overdispsed data set by adding an observation-level
normal random shock
into exp(....+rnorm...