[R] R2WinBugs and Compare DIC versus BIC or AIC

From: Dae-Jin Lee <lee.daejin_at_gmail.com>
Date: Fri 12 Jan 2007 - 18:41:24 GMT


Dear All

1)

I'm fitting spatial CAR models

using R2Winbugs and although everything seems to go reasonably well (or I think so)

the next message appears from WINBUGS 1.4 window:

gen.inits()
Command #Bugs: gen.inits cannot be executed (is greyed out)

The question is if this message means that something is wrong and the results are consequently wrong, or Can I assume it as a simple warning message???...

I've tried to fit the model using just WinBugs (not calling form R) and gen.inits command is available and the results obtain are practically the same...

2)

The other question is, once several bayesian CAR models are fitted I use DIC to model selection

How can I compare DIC with AIC or BIC obtain for a spatial glm? I mean for example:

versus

Thanks,

Dae-Jin Lee

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