Source code for pm4py.algo.transformation.ocel.features.objects.object_lifecycle_duration

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from pm4py.objects.ocel.obj import OCEL
from typing import Optional, Dict, Any

[docs]def apply(ocel: OCEL, parameters: Optional[Dict[Any, Any]] = None): """ Adds for each object as features: - the duration of its lifecycle - the start timestamp - the end timestamp Parameters ----------------- ocel OCEL parameters Parameters of the algorithm Returns ----------------- data Values of the added features feature_names Names of the added features """ if parameters is None: parameters = {} ordered_objects = list(ocel.objects[ocel.object_id_column]) first_object_timestamp = ocel.relations.groupby(ocel.object_id_column).first()[ocel.event_timestamp].to_dict() last_object_timestamp = ocel.relations.groupby(ocel.object_id_column).last()[ocel.event_timestamp].to_dict() data = [] feature_names = ["@@object_lifecycle_duration", "@@object_lifecycle_start_timestamp", "@@object_lifecycle_end_timestamp"] for obj in ordered_objects: se = first_object_timestamp[obj].timestamp() ee = last_object_timestamp[obj].timestamp() data.append([ee - se, se, ee]) return data, feature_names