Cannot import name 'Factor' from 'pgmpy.factors'

[MeghaNarjary]

Cannot import name 'Factor' from 'pgmpy.factors'

[ankurankan]

@MeghaNarjary Could you share what code you are running exactly to get that error? Ideally, it should be from pgmpy.factors.discrete import DiscreteFactor

[MeghaNarjary]

from pgmpy.models import MarkovNetwork
from pgmpy.factors import Factor
import numpy as np
model = MarkovNetwork([('A','B'),('B','C'),
('C','D'),('D','A')])
factor_a_b = Factor(variables=['A', 'B'],
cardinality=[2, 2],
value=np.random.rand(4)) # The numpy.random.rand() function creates
# an array of specified shape and fills it with random values
factor_b_c = Factor(variables=['B', 'C'],
cardinality=[2, 2],
value=np.random.rand(4))
factor_c_d = Factor(variables=['C', 'D'],
cardinality=[2, 2],
value=np.random.rand(4))
factor_d_a = Factor(variables=['D', 'A'],
cardinality=[2, 2],
value=np.random.rand(4))
model.add_factors(factor_a_b, factor_b_c,
factor_c_d, factor_d_a)
model.get_factors()

here I get an error that 'Factor' cannot import from 'pgmpy.factors'
and also I try with 'DiscreteFactor' ......and 'DiscreteFactor' also gives me the same kind of error

[ankurankan]

Sorry for the late reply. Factor isn't a class in pgmpy, maybe you want to use DiscreteFactor. And it can be imported using: from pgmpy.factors.discrete import DiscreteFactor