pm4py.objects.ocel.util.event_prefix_suffix_per_obj module

class pm4py.objects.ocel.util.event_prefix_suffix_per_obj.Parameters(*values)

Bases: Enum

PREFIX_OR_SUFFIX = 'prefix_or_suffix'

INDEX_ATTRIBUTE = 'index_attribute'

LEFT_SUFFIX = 'left_suffix'

RIGHT_SUFFIX = 'right_suffix'

pm4py.objects.ocel.util.event_prefix_suffix_per_obj.apply(ocel: OCEL, parameters: Dict[Any, Any] | None = None)

Gets for each event and each one of the related objects, the prefix or the suffix. E.g. if there is an object “o1” with lifecycle “e1”, “e2”, “e3”, then:

The prefix of “e1” for “o1” is empty. The prefix of “e2” for “o1” is [“e1”]. The prefix of “e3” for “o1” is [“e1”, “e2”].

The suffix of “e1” for “o1” is [“e2”, “e3”]. The suffix of “e2” for “o1” is [“o3”]. The suffix of “e3” for “o1” is empty.

Parameters:

• ocel – Object-centric event log

• parameters –

  Parameters of the algorithm, including:

  • Parameters.PREFIX_OR_SUFFIX => establishes if the prefix or the suffix of the event per object is

    needed. Possible values:

    • “prefix”

    • “suffix”

  • Parameters.INDEX_ATTRIBUTE => the index attribute which is artificially inserted in the relations df.

  • Parameters.LEFT_SUFFIX => the suffix for the left-part of the merge.

  • Parameters.RIGHT_SUFFIX => the suffix for the right-part of the merge

Returns:

A dictionary where the first key is the event, the second key is the object, and the value is a list of events which are the object-specific prefix or suffix of the event.

Return type:

ret