The default mutual parameters in the method bayes.generate_cpd(...) was the problem, thanks alot for the hint and for this code snippet to find such problems :-).
Greetings, Felix
Michael Spencer wrote:
Without looking in the slightest at what you are implementing or how, this implies that state is maintained between calls to test
The question is where/how is the state maintained? .
>. >.
3) as mutable default parameters?
See: line 135: def __init__(self,V,E,p=[]): line 150: def generate_cpd(self,node, rest, values={}): line 360: def computeJPD(self, rest, values={}):
I guess one (or more) of these is the culprit
Before running:
Python 2.4 (#60, Nov 30 2004, 11:49:19) [MSC v.1310 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> bayesNet.generate_cpd.func_defaults
({},)
>>> bayesNet.__init__.func_defaults
([],)
>>> bayesNet.computeJPD.func_defaults
({},)
>>> test()
V = {'a': [0, 1], 'b': [0, 1]}
[snip results]
After test:
>>> bayesNet.generate_cpd.func_defaults ({'a': 1, 'b': 1},) >>> bayesNet.__init__.func_defaults ([],) >>> bayesNet.computeJPD.func_defaults ({'a': 1, 'b': 1},) >>>
HTH
Michael
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