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put strong connectivity check in config.SHORTCIRCUIT_SIA. #114

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put strong connectivity check in config.SHORTCIRCUIT_SIA. #114

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90ffc38
put connectivity check in an option of SHORTCIRCUIT.
Dec 15, 2023
2b4dd34
Merge branch 'feature/iit-4.0' of https://github.com/Astrocytes120/py…
Dec 15, 2023
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12 changes: 12 additions & 0 deletions pyphi/new_big_phi/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -272,6 +272,7 @@ class ShortCircuitConditions(Enum):
NO_VALID_PARTITIONS = auto()
NO_CAUSE = auto()
NO_EFFECT = auto()
NOT_STRONGLY_CONNECTED = auto()


def _has_no_cause_or_effect(system_state):
Expand Down Expand Up @@ -300,6 +301,7 @@ def sia(
partitions: Optional[Iterable] = None,
system_state: Optional[SystemStateSpecification] = None,
subsystem_cause: Optional[Subsystem] = None,

**kwargs,
) -> SystemIrreducibilityAnalysis:
"""Find the minimum information partition of a system."""
Expand Down Expand Up @@ -339,7 +341,17 @@ def _null_sia(**kwargs):
**kwargs,
)


if config.SHORTCIRCUIT_SIA:

#For the case where cm is not offered by an user
if subsystem.cm.sum() == subsystem.cm.size:
subsystem.cm = subsystem.network.tpm.infer_cm()

#When subsystem is not strongly connected
if not connectivity.is_strong(subsystem.cm, subsystem.node_indices):
return _null_sia(reasons=[ShortCircuitConditions.NOT_STRONGLY_CONNECTED])

shortcircuit_reasons = _has_no_cause_or_effect(system_state)
if shortcircuit_reasons:
return _null_sia(reasons=shortcircuit_reasons)
Expand Down