Explanation fixes for error and output generation. (#1090)

Author: codeloop

ads/opctl/operator/lowcode/forecast/model/automlx.py

@@ -249,7 +249,6 @@ def _generate_report(self):
 self.explain_model()
 
 global_explanation_section = None
-
 # Convert the global explanation data to a DataFrame
 global_explanation_df = pd.DataFrame(self.global_explanation)
 
@@ -470,13 +469,22 @@ def explain_model(self):
 self.global_explanation[s_id] = dict(
 zip(
 self.local_explanation[s_id].columns,
-np.nanmean((self.local_explanation[s_id]), axis=0),
+np.nanmean(np.abs(self.local_explanation[s_id]), axis=0),
 )
 )
 else:
 # Fall back to the default explanation generation method
 super().explain_model()
 except Exception as e:
+if s_id in self.errors_dict:
+self.errors_dict[s_id]["explainer_error"] = str(e)
+self.errors_dict[s_id]["explainer_error_trace"] = traceback.format_exc()
+else:
+self.errors_dict[s_id] = {
+"model_name": self.spec.model,
+"explainer_error": str(e),
+"explainer_error_trace": traceback.format_exc(),
+}
 logger.warning(
 f"Failed to generate explanations for series {s_id} with error: {e}."
 )

ads/opctl/operator/lowcode/forecast/model/base_model.py

@@ -570,7 +570,7 @@ def _save_report(
 # explanations csv reports
 if self.spec.generate_explanations:
 try:
-if self.formatted_global_explanation is not None:
+if not self.formatted_global_explanation.empty:
 write_data(
 data=self.formatted_global_explanation,
 filename=os.path.join(
@@ -586,7 +586,7 @@ def _save_report(
 f"Attempted to generate global explanations for the {self.spec.global_explanation_filename} file, but an issue occured in formatting the explanations."
 )
 
-if self.formatted_local_explanation is not None:
+if not self.formatted_local_explanation.empty:
 write_data(
 data=self.formatted_local_explanation,
 filename=os.path.join(