I'm unable to get the code on this webpage to run. I don't see the function "is_active_trail" in pgmpy. Has it been changed or removed? How best to get the code to work? from pgmpy.models import BayesianModel model = BayesianModel() model.add_nodes_from(['rain', 'traffic_jam']) model.add_edge('rain', 'traffic_jam') model.add_edge('rain', 'traffic_jam') model.add_edge('accident', 'traffic_jam') model.nodes() from pgmpy.factors.discrete import TabularCPD cpd_rain = TabularCPD('rain', 2, [[0.4], [0.6]]) cpd_accident = TabularCPD('accident', 2, [[0.2], [0.8]]) cpd_traffic_jam = TabularCPD( 'traffic_jam', 2, [[0.9, 0.6, 0.7, 0.1], [0.1, 0.4, 0.3, 0.9]], evidence=['rain', 'accident'], evidence_card=[2, 2]) model.add_cpds(cpd_rain, cpd_accident, cpd_traffic_jam) model.get_cpds() model.add_node('long_queues') model.add_edge('traffic_jam', 'long_queues') cpd_long_queues = TabularCPD('long_queues', 2, [[0.9, 0.2], [0.1, 0.8]], evidence=['traffic_jam'], evidence_card=[2]) model.add_cpds(cpd_long_queues) model.add_nodes_from(['getting_up_late', 'late_for_school']) model.add_edges_from( [('getting_up_late', 'late_for_school'), ('traffic_jam', 'late_for_school')]) cpd_getting_up_late = TabularCPD('getting_up_late', 2, [[0.6], [0.4]]) cpd_late_for_school = TabularCPD( 'late_for_school', 2, [[0.9, 0.45, 0.8, 0.1], [0.1, 0.55, 0.2, 0.9]], evidence=['getting_up_late', 'traffic_jam'], evidence_card=[2, 2]) model.add_cpds(cpd_getting_up_late, cpd_late_for_school) model.get_cpds() model.check_model() model.is_active_trail('accident', 'rain') error: /usr/local/lib/python3.7/dist-packages/pgmpy/models/BayesianModel.py:10: FutureWarning: BayesianModel has been renamed to BayesianNetwork. Please use BayesianNetwork class, BayesianModel will be removed in future. FutureWarning, AttributeError Traceback (most recent call last) in () 46 model.check_model() 47 ---> 48 model.is_active_trail('accident', 'rain') AttributeError: 'BayesianModel' object has no attribute 'is_active_trail' Continue reading...
