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mer_coef
2005 Aug 13
2
monte carlo simulations/lmer
...ons comparing bayesian (using
Plummer's jags) and maximum likelihood (using lmer from package lme4
by Bates et al).
I would like to know if there is a way I can flag nonconvergence and
exceptions. Currently the simulations just stop and the output reads
things like:
Error in optim(.Call("lmer_coef", x, 2, PACKAGE = "Matrix"), fn, gr,
method = "L-BFGS-B", :
L-BFGS-B needs finite values of 'fn'
In addition: Warning message:
Leading minor of size 1 of downdated X'X is indefinite
Error in .local(object, ...) : Leading 2 minor of Omega[[1]] not
positive...