'''
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
from pm4py.algo.filtering.ocel import ot_endpoints
[docs]def apply(ocel: OCEL, parameters: Optional[Dict[Any, Any]] = None):
"""
Assigns to each event a feature that is 1 when the event completes the lifecycle of at least one object
of a given type.
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])
object_types = list(ocel.objects[ocel.object_type_column].unique())
map_endpoints = {}
for ot in object_types:
map_endpoints[ot] = set(ot_endpoints.filter_end_events_per_object_type(ocel, ot, parameters=parameters).events[ocel.event_id_column])
feature_names = ["@@event_end_"+ot for ot in object_types]
data = []
for ev in ordered_events:
data.append([])
for ot in object_types:
data[-1].append(1 if ev in map_endpoints[ot] else 0)
return data, feature_names