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Fix #303 - Reorder columns in query instance #304

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Jun 27, 2022
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Fix #303 - Reorder columns in query instance #304

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9 changes: 8 additions & 1 deletion dice_ml/explainer_interfaces/dice_KD.py
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Original file line number Diff line number Diff line change
Expand Up @@ -223,9 +223,16 @@ def find_counterfactuals(self, data_df_copy, query_instance, query_instance_orig

# Making the one-hot-encoded version of query instance match the one-hot encoded version of the dataset
query_instance_df_dummies = pd.get_dummies(query_instance_orig)
for col in pd.get_dummies(data_df_copy[self.data_interface.feature_names]).columns:

data_df_columns = pd.get_dummies(data_df_copy[self.data_interface.feature_names]).columns
for col in data_df_columns:
if col not in query_instance_df_dummies.columns:
query_instance_df_dummies[col] = 0

# Fix order of columns in the query instance. This is necessary because KD-tree treats data as a simple array
# instead of a dataframe.
query_instance_df_dummies = query_instance_df_dummies.reindex(columns=data_df_columns)

self.final_cfs, cfs_preds = self.vary_valid(query_instance_df_dummies,
total_CFs,
features_to_vary,
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