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443
2004 Oct 31
2
Error Message: MCMCpack and coda
...ing to run a one-dimenional irt model using the packages MCMC and
coda on a rather large set of roll-call voting data with many missing
observations. Here's a sample of the code:
Post10<-
MCMCirt1d (Italy10, burnin = 1000, mcmc=50000, thin=100, verbose=TRUE,
theta.constraints = list(V549=1, V443=-1))
The MCMCirt1d command seems to work fine, but when I try to summarize the
output I get the following error message(s):
summary(Post10)
Error: NA/NaN/Inf in foreign function call (arg 1)
In addition: Warning message:
Step size truncated due to divergence
My understanding is that this has som...