Hi ,
Sorry for the late reply. It is possible the MCMC calculator needs some thing to make it work with a specific model.
Your links for the files you have posted (corrected for an extra character) Download test.zip from Sendspace.com - send big files the easy way have a code example using the BayesianCalculator not the MCMC one.
Do you have problem with the Bayesian calculator or the MCMC one or with both ?
Here you are setting a range for the nuisance parameters that is needed when using a Bayesian tool, since we integrate on them.
Now, since you are not performing first a fit to your model, you should maybe selected a fixed range looking at your specific input model. In your case you can easily assume that b can be limited for example between [0,5].
So you can change that line to:
Dear ROOT experts, moneta, eguiraud, and jalopezg.
Thank you for the remind, reply and comment.
I will try to follow your comments and test it quickly!!
Best regards.
P.S. it works, I try to understand the framework and statistics itself !