Remove old logic; use 4.0 as IIT_VERSION

pyphi/big_phi.py

@@ -940,7 +940,7 @@ def sia(
             desc="Generating nonconflicting phi-structures",
         )
 
-    if config.IIT_VERSION == "maximal-state-first":
+    if config.IIT_VERSION == 4.0:
 
         maximal_compositional_state = find_maximal_compositional_state(
             phi_structures,

pyphi/conf.py

@@ -472,7 +472,7 @@ class PyphiConfig(Config):
     """``pyphi.config`` is an instance of this class."""
 
     IIT_VERSION = Option(
-        "maximal-state-first",
+        4.0,
         doc="""
     The version of the theory to use.""",
     )

pyphi/subsystem.py

@@ -913,46 +913,6 @@ def phi(self, mechanism, purview, **kwargs):
     # Maximal state methods
     # =========================================================================
 
-    def _specified_states_to_specified_index(self, states, purview):
-        full_index = [np.zeros(len(states), dtype=int) for i in self.node_indices]
-        specified_indices = states.transpose()
-        for i, index in zip(purview, specified_indices):
-            full_index[i] = index
-        return tuple(full_index)
-
-    def find_maximally_irreducible_state(self, direction, mechanism, purview):
-        required_repertoire_distances = [
-            "IIT_4.0_SMALL_PHI",
-            "IIT_4.0_SMALL_PHI_NO_ABSOLUTE_VALUE",
-        ]
-        if config.REPERTOIRE_DISTANCE not in required_repertoire_distances:
-            raise ValueError(
-                f'REPERTOIRE_DISTANCE must be set to one of "{required_repertoire_distances}"'
-            )
-
-        state_to_mip = {
-            state: self.find_mip(direction, mechanism, purview, state=state)
-            for state in utils.all_states(len(purview))
-        }
-        _, max_mip = max(state_to_mip.items())
-
-        # Record ties
-        tied_states, tied_mips = zip(
-            *(
-                (state, mip)
-                for state, mip in state_to_mip.items()
-                if mip.phi == max_mip.phi
-            )
-        )
-        tied_states = np.array(tied_states)
-        tied_index = self._specified_states_to_specified_index(tied_states, purview)
-        for mip in tied_mips:
-            # TODO change definition of specified state
-            mip._specified_state = tied_states
-            mip._specified_index = tied_index
-
-        return max_mip
-
     def intrinsic_information(
         self,
         direction: Direction,
@@ -1080,13 +1040,6 @@ def find_mice(self, direction, mechanism, purviews=False, **kwargs):
             MaximallyIrreducibleCauseOrEffect: The |MIC| or |MIE|.
         """
 
-        def _find_maximally_irreducible_state(
-            purview, subsystem=None, direction=None, mechanism=None
-        ):
-            return subsystem.find_maximally_irreducible_state(
-                direction, mechanism, purview
-            )
-
         def _find_tied_mips(purview, subsystem=None, direction=None, mechanism=None):
             # TODO(4.0) refactor
             # TODO(ties) refactor to use full 'Specification' object
@@ -1146,9 +1099,6 @@ def CurriedMapReduce(map_func):
             max_mice = null_mice
         else:
             if config.IIT_VERSION == 4:
-                # TODO(4.0)
-                map_func = _find_maximally_irreducible_state
-            elif config.IIT_VERSION == "maximal-state-first":
                 map_func = _find_tied_mips
             else:
                 map_func = _find_mip

pyphi_config.yml

@@ -33,7 +33,7 @@ DISTINCTION_SUM_PHI_UPPER_BOUND: DISTINCT_AND_CONGRUENT_PURVIEWS
 # The type of horizontal system partition scheme to use.
 HORIZONTAL_PARTITION_CODE: "1210"
 # The version of the theory to use.
-IIT_VERSION: maximal-state-first
+IIT_VERSION: 4.0
 # The method of combining cause and effect integration values.
 INTEGRATION_VALUE: MIN
 # The path for the log file.