Source code for pm4py.algo.transformation.ocel.features.events.event_activity

'''
    This file is part of PM4Py (More Info: https://pm4py.fit.fraunhofer.de).

    PM4Py is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    PM4Py is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with PM4Py.  If not, see <https://www.gnu.org/licenses/>.
'''
from pm4py.objects.ocel.obj import OCEL
from typing import Optional, Dict, Any


[docs]def apply(ocel: OCEL, parameters: Optional[Dict[Any, Any]] = None): """ One-hot encode the activities of an OCEL, assigning to each event its own activity as feature Parameters ---------------- ocel OCEL parameters Parameters of the algorithm Returns ---------------- data Extracted feature values feature_names Feature names """ if parameters is None: parameters = {} ordered_events = list(ocel.events[ocel.event_id_column]) activities = list(ocel.events[ocel.event_activity].unique()) data = [] feature_names = ["@@event_act_"+act for act in activities] events_activities = ocel.events[[ocel.event_id_column, ocel.event_activity]].to_dict("records") events_activities = {x[ocel.event_id_column]: x[ocel.event_activity] for x in events_activities} for ev in ordered_events: data.append([0] * len(activities)) data[-1][activities.index(events_activities[ev])] = 1 return data, feature_names