Metropolis Error

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Metropolis Error

Postby pun_star » Wed Apr 18, 2007 3:39 pm

i get the following error when i do MCMC

Warning: Log of zero.
> In metropolis at 822
In dynare_estimation at 778
In Version_18_m at 403
In dynare at 26

i think this has to do with the log data density compution. have you guys encountered it?
pun_star
 
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Postby MichelJuillard » Tue May 15, 2007 5:11 am

This usually happens when the Metropolis iterations don't move enough. It is often due to a bad mode. Check for 0 standard deviation in the posterior mode report.

Best

Michel
MichelJuillard
 
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