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CosmoMC: Fix the stepsize of a given parameter
 
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gongbo zhao



Joined: 04 Jan 2005
Posts: 63
Affiliation: ICG, Portsmouth
PostPosted: December 29 2007  Reply with quote
Dear all,

Is it straightforward to fix the stepsize of a given parameter for MCMC?
For example, what to do if I am playing with an integer parameter?
Thanks very much and Happy new year!!



Cheers
Gong-Bo
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Antony Lewis



Joined: 23 Sep 2004
Posts: 675
Affiliation: University of Sussex
PostPosted: December 29 2007  Reply with quote
You could write your own "propose" module, or you can easily internally convert a real to an integer when you come to use the parameter.
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gongbo zhao



Joined: 04 Jan 2005
Posts: 63
Affiliation: ICG, Portsmouth
PostPosted: December 29 2007  Reply with quote
Hi Antony,

Thanks very much!



Gong-Bo
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