[R] WinBUGS posterior samples (via R2WinBUGS)?

Gregor Gorjanc gregor.gorjanc at bfro.uni-lj.si
Fri Jan 2 00:50:54 CET 2009


Anny Huang <annylhuang <at> gmail.com> writes:
> I did some analysis using package R2WinBUGS to call WinBUGS. I set the
> iterations to 50000 (fairly a large number, I think), but after the program
> was done,  the effective posterior samples contained only 7 draws.  I don't
> know why.

This indicates that you have a mixing problem! I guess that you do not have 
enough information to retrieve the post. dist. of that parameter. You might
try to reconsider your model or reparametrize it.

gg




More information about the R-help mailing list