Assign values to nodes?

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I got the idea that using mk_bnet function to construct the Bayesian network 
with 

conditional probabilities, but I can not figure out how to assign values to 
those nodes.

The nodes in our problem have both probabilities and values, for example, the 
rain is 

30% to be large which is 100 mm/day.

And the deterministic nodes which are calculated by parent nodes' values, can 
they be 

constructed by deterministic_CPD?

I know this may not be a issue for expert, but please help, thank you!!

Original issue reported on code.google.com by [email protected] on 11 Jul 2012 at 6:54