Displaying 3 results from an estimated 3 matches for "bayman".
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batman
2007 Sep 28
0
lmer giving negative, or no, estimated standard errors
R Users,
Emine Bayman sent this out earlier and we do not think it went through.
Appologies if it did.
We want to fit GLMM with lmer with binomial data and a one-way random
effects model (overall mean is a fixed effect and there are random
effects for each binomial).
We are using the Laplace method. We are simul...
2007 Jun 01
2
Interaction term in lmer
Dear R users,
I'm pretty new on using lmer package. My response is binary and I have fixed
treatment effect (2 treatments) and random center effect (7 centers). I want
to test the effect of treatment by fitting 2 models:
Model 1: center effect (random) only
Model 2: trt (fixed) + center (random) + trt*center interaction.
Then, I want to compare these 2 models with Likelihood Ratio Test.
2007 Sep 25
0
R lmer with problem of 'sd slot has negative entries'
...(example3)
se.fixef(example3)
example4 <- lmer(cbind( y, n - y) ~ 1 + ( 1 | center) ,
family = binomial, niter = 50, method = "PQL",control = list (usePQL =
FALSE))
fixef(example4)
se.fixef(example4)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Emine Ozgur BAYMAN
PhD Student
Department of Biostatistics,
College of Public Health,
University of Iowa
Office: 2400D UCC, Iowa City / IA
Office Phone: (319) 384 27 52
e-mail: emine-unlu@uiowa.edu
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