def enumerate_all(vars, e, bn):
    """Return the sum of those entries in P(vars | e{others})
    consistent with e, where P is the joint distribution represented
    by bn, and e{others} means e restricted to bn's other variables
    (the ones other than vars). Parents must precede children in vars."""
    if not vars:
        return 1.0
    Y, rest = vars[0], vars[1:]
    Ynode = bn.variable_node(Y)
    if Y in e:
        return Ynode.p(e[Y], e) * enumerate_all(rest, e, bn)
    else:
        return sum(Ynode.p(y, e) * enumerate_all(rest, extend(e, Y, y), bn)
                   for y in bn.variable_values(Y))
def enumerate_all(vars, e, bn):
    """Return the sum of those entries in P(vars | e{others})
    consistent with e, where P is the joint distribution represented
    by bn, and e{others} means e restricted to bn's other variables
    (the ones other than vars). Parents must precede children in vars."""
    if not vars:
        return 1.0
    Y, rest = vars[0], vars[1:]
    Ynode = bn.variable_node(Y)
    if Y in e:
        return Ynode.p(e[Y], e) * enumerate_all(rest, e, bn)
    else:
        return sum(Ynode.p(y, e) * enumerate_all(rest, extend(e, Y, y), bn)
                   for y in bn.variable_values(Y))
def enumerate_all ( vars , e , bn ) : if not vars : return 1.0 Y , rest = vars [ 0 ] , vars [ 1 : ] Ynode = bn . variable_node ( Y ) if Y in e : return Ynode . p ( e [ Y ] , e ) * enumerate_all ( rest , e , bn ) else : return sum ( Ynode . p ( y , e ) * enumerate_all ( rest , extend ( e , Y , y ) , bn ) for y in bn . variable_values ( Y ) )
Return the sum of those entries in P(vars | e{others})
    consistent with e, where P is the joint distribution represented
    by bn, and e{others} means e restricted to bn's other variables
    (the ones other than vars). Parents must precede children in vars.
Return the sum of those entries in P ( vars | e { others } ) consistent with e where P is the joint distribution represented by bn and e { others } means e restricted to bn s other variables ( the ones other than vars ) . Parents must precede children in vars .