Handle multi target inputs

orangecontrib/explain/inspection.py

@@ -202,8 +202,11 @@ def individual_condition_expectation(
     feature_index = data.domain.index(feature.name)
 
     # fake sklearn estimator
-    model.fit = None
-    model.fit_ = None
+    def dummy_fit(*_, **__):
+        raise NotImplementedError()
+
+    model.fit = dummy_fit
+    model.fit_ = dummy_fit
     if model.domain.class_var.is_discrete:
         model._estimator_type = "classifier"
         model.classes_ = model.domain.class_var.values

orangecontrib/explain/tests/test_inspection.py

@@ -1,6 +1,5 @@
 import unittest
 from unittest.mock import Mock
-import pkg_resources
 
 import numpy as np
 from sklearn.inspection import permutation_importance, partial_dependence
@@ -121,7 +120,7 @@ def test_wrap_score_skl_predict_reg(self):
         baseline_score = scorer(mocked_model, data)
         mocked_model.assert_not_called()
         mocked_model.predict.assert_not_called()
-        self.assertAlmostEqual(baseline_score, 2, 0)
+        self.assertLess(baseline_score, 2.6)
 
 
 class TestPermutationFeatureImportance(unittest.TestCase):

orangecontrib/explain/widgets/owexplainfeaturebase.py

@@ -21,6 +21,10 @@
 from Orange.widgets.settings import Setting
 from Orange.widgets.utils.concurrent import ConcurrentWidgetMixin, TaskState
 from Orange.widgets.utils.graphicslayoutitem import SimpleLayoutItem
+try:
+    from Orange.widgets.utils.multi_target import check_multiple_targets_input
+except ImportError:
+    check_multiple_targets_input = lambda f: f
 from Orange.widgets.utils.sql import check_sql_input
 from Orange.widgets.utils.state_summary import format_summary_details
 from Orange.widgets.utils.stickygraphicsview import StickyGraphicsView
@@ -462,6 +466,7 @@ def __n_spin_changed(self):
     # Inputs
     @Inputs.data
     @check_sql_input
+    @check_multiple_targets_input
     def set_data(self, data: Optional[Table]):
         self.data = data
         summary = len(data) if data else self.info.NoInput
@@ -473,6 +478,7 @@ def _check_data(self):
         pass
 
     @Inputs.model
+    @check_multiple_targets_input
     def set_model(self, model: Optional[Model]):
         self.closeContext()
         self.model = model

orangecontrib/explain/widgets/owexplainprediction.py

@@ -17,6 +17,10 @@
 from Orange.data import Table, Domain, ContinuousVariable, StringVariable
 from Orange.data.table import DomainTransformationError
 from Orange.widgets import gui
+try:
+    from Orange.widgets.utils.multi_target import check_multiple_targets_input
+except ImportError:
+    check_multiple_targets_input = lambda f: f
 from Orange.widgets.settings import Setting, ContextSetting, \
     ClassValuesContextHandler
 from Orange.widgets.utils.concurrent import TaskState, ConcurrentWidgetMixin
@@ -574,15 +578,18 @@ def __zoom_changed(self, delta: float):
 
     @Inputs.data
     @check_sql_input
+    @check_multiple_targets_input
     def set_data(self, data: Optional[Table]):
         self.data = data
 
     @Inputs.background_data
     @check_sql_input
+    @check_multiple_targets_input
     def set_background_data(self, data: Optional[Table]):
         self.background_data = data
 
     @Inputs.model
+    @check_multiple_targets_input
     def set_model(self, model: Optional[Model]):
         self.closeContext()
         self.model = model
@@ -614,7 +621,9 @@ def clear(self):
         self.__results = None
         self.cancel()
         self.clear_scene()
-        self.clear_messages()
+        self.Error.domain_transform_err.clear()
+        self.Error.unknown_err.clear()
+        self.Information.multiple_instances.clear()
 
     def check_inputs(self):
         if self.data and len(self.data) > 1:

orangecontrib/explain/widgets/owexplainpredictions.py

@@ -19,6 +19,10 @@
 from Orange.data import Table, Domain, ContinuousVariable, Variable
 from Orange.data.table import DomainTransformationError
 from Orange.widgets import gui
+try:
+    from Orange.widgets.utils.multi_target import check_multiple_targets_input
+except ImportError:
+    check_multiple_targets_input = lambda f: f
 from Orange.widgets.settings import ContextSetting, Setting, \
     PerfectDomainContextHandler
 from Orange.widgets.utils.annotated_data import ANNOTATED_DATA_SIGNAL_NAME, \
@@ -649,6 +653,7 @@ def _add_buttons(self):
 
     @Inputs.data
     @check_sql_input
+    @check_multiple_targets_input
     def set_data(self, data: Optional[Table]):
         self.closeContext()
         self.data = data
@@ -658,10 +663,12 @@ def set_data(self, data: Optional[Table]):
 
     @Inputs.background_data
     @check_sql_input
+    @check_multiple_targets_input
     def set_background_data(self, data: Optional[Table]):
         self.background_data = data
 
     @Inputs.model
+    @check_multiple_targets_input
     def set_model(self, model: Optional[Model]):
         self.model = model
 

orangecontrib/explain/widgets/owice.py

@@ -37,6 +37,10 @@
 
 from orangecontrib.explain.inspection import individual_condition_expectation
 from orangewidget.utils.visual_settings_dlg import VisualSettingsDialog
+try:
+    from Orange.widgets.utils.multi_target import check_multiple_targets_input
+except ImportError:
+    check_multiple_targets_input = lambda f: f
 
 
 class RunnerResults(SimpleNamespace):
@@ -621,12 +625,14 @@ def _add_buttons(self):
 
     @Inputs.data
     @check_sql_input
+    @check_multiple_targets_input
     def set_data(self, data: Optional[Table]):
         self.data = data
         self.__sampled_mask = None
         self._check_data()
 
     @Inputs.model
+    @check_multiple_targets_input
     def set_model(self, model: Optional[Model]):
         self.model = model