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new parameter in cosmomc with uniform prior
 
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Nishanth Sasankan



Joined: 07 Sep 2016
Posts: 7
Affiliation: university of notre dame

PostPosted: November 01 2017  Reply with quote

Hi everyone,
I am very new to cosmomc and I am trying to add a new parameter with a uniform prior in cosmomc. I know how to add the new parameter but I am not sure how I can implement a uniform prior (top hat prior) for the new parameter. Is it sufficient to just give a center, max and min but no width or propose width value in the params_CMB_defaults.ini file?

Thanks
Nishanth
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Antony Lewis



Joined: 23 Sep 2004
Posts: 1291
Affiliation: University of Sussex

PostPosted: November 01 2017  Reply with quote

Priors are flat by default, just give center, max and min AND a starting and proposal width (the latter two have no impact on the prior, just how big jumps the code makes in the parameter).
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