pm4py.algo.filtering.log.prefixes.prefix_filter module#

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class pm4py.algo.filtering.log.prefixes.prefix_filter.Parameters(*values)[source]#

Bases: Enum

ACTIVITY_KEY = 'pm4py:param:activity_key'#
STRICT = 'strict'#
FIRST_OR_LAST = 'first_or_last'#
pm4py.algo.filtering.log.prefixes.prefix_filter.apply(log: EventLog | EventStream, activity: str, parameters: Dict[Any, Any] | None = None) → EventLog[source]#

Filters the prefixes of an activity in the event log

Parameters:

  • log – Event log

  • activity – Target activity

  • parameters – Parameters of the algorithm, including: - Parameters.ACTIVITY_KEY => the activity. - Parameters.STRICT => applies the filter strictly (cuts the occurrences of the selected activity). - Parameters.FIRST_OR_LAST => decides if the first or last occurrence of an activity should be selected.

Returns:

Filtered event log

Return type:

filtered_log