Python to_log Exemples

Exemple #1

Fichier : test_factor.py Projet : henrypig/alex-1

    def test_logsubexp(self):
        a1 = to_log(np.array([1, 2, 3]))
        a2 = to_log(np.array([1, 1, 2]))
        result = from_log(logsubexp(a1, a2))
        self.assertAlmostEqual(result[0], 0)
        self.assertAlmostEqual(result[1], 1)
        self.assertAlmostEqual(result[2], 1)

        result = from_log(logsubexp(a1, to_log(1)))
        self.assertAlmostEqual(result[0], 0)
        self.assertAlmostEqual(result[1], 1)
        self.assertAlmostEqual(result[2], 2)

Exemple #2

def constant_factor(variables, variables_dict, length, logarithmetic=True):
    if logarithmetic:
        factor = Factor(variables, variables_dict, to_log(np.ones(length)),
                        logarithmetic)
    else:
        factor = Factor(variables, variables_dict, np.ones(length),
                        logarithmetic)
    return factor

Exemple #3

Fichier : utils.py Projet : AoJ/alex

def constant_factor(variables, variables_dict, length, logarithmetic=True):
    if logarithmetic:
        factor = Factor(variables, variables_dict, to_log(np.ones(length)), logarithmetic)
    else:
        factor = Factor(variables, variables_dict, np.ones(length), logarithmetic)
    return factor