diff options
Diffstat (limited to 'beliefs/factors/CPD.py')
| -rw-r--r-- | beliefs/factors/CPD.py | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/beliefs/factors/CPD.py b/beliefs/factors/CPD.py index 8de47b3..a286aaa 100644 --- a/beliefs/factors/CPD.py +++ b/beliefs/factors/CPD.py @@ -6,7 +6,7 @@ class TabularCPD: Defines the conditional probability table for a discrete variable whose parents are also discrete. - TODO: have this inherit from DiscreteFactor + TODO: have this inherit from DiscreteFactor implementing explicit factor methods """ def __init__(self, variable, variable_card, parents=[], parents_card=[], values=[]): @@ -22,9 +22,11 @@ class TabularCPD: self.parents = parents self.variables = [variable] + parents self.cardinality = [variable_card] + parents_card + self._values = np.array(values) - if values: - self.values = np.array(values) + @property + def values(self): + return self._values def get_values(self): """ @@ -34,3 +36,10 @@ class TabularCPD: return self.values.reshape(1, np.prod(self.cardinality)) else: return self.values.reshape(self.cardinality[0], np.prod(self.cardinality[1:])) + + def copy(self): + return self.__class__(self.variable, + self.cardinality[0], + self.parents, + self.cardinality[1:], + self._values) |