pm4py.algo.transformation.ocel.olap.roll_up.variants.classic module#

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class pm4py.algo.transformation.ocel.olap.roll_up.variants.classic.Parameters(*values)[source]#

Bases: Enum

OBJECT_TYPE = 'object_type'#
OBJECT_ATTRIBUTE = 'object_attribute'#
TUPLE_MATCHER = 'tuple_matcher'#
pm4py.algo.transformation.ocel.olap.roll_up.variants.classic.apply(ocel: OCEL, parameters: Dict[Any, Any] | None = None) → OCEL[source]#

Roll-up: the inverse of drill-down. Collapses tuple-style sub-types of a given parent object type back to the parent type.

Parameters:

  • ocel – Object-centric event log

  • parameters –

    • Parameters.OBJECT_TYPE: name of the parent object type to merge back to (required)

    • Parameters.OBJECT_ATTRIBUTE: optional, accepted for API symmetry with drill_down; if provided, must be a column of ocel.objects. Not semantically required because the tuple type value already encodes the split.

    • Parameters.TUPLE_MATCHER: optional callable (type_value, parent) -> bool deciding whether type_value is a sub-type of parent. Default matches the "(parent, value)" encoding produced by drill_down.

  • Returns a new OCEL; the input log is left untouched.