Adding one [0] after nonzero

code/bolsonaro/models/omp_forest.py

@@ -142,8 +142,8 @@ class SingleOmpForest(OmpForest):
             forest_predictions /= self._forest_norms
 
         weights = self._omp.coef_
-        omp_trees_indices = np.nonzero(weights)
+        omp_trees_indices = np.nonzero(weights)[0]
 
         select_trees = np.mean(forest_predictions[omp_trees_indices], axis=0)
-
+        print(len(omp_trees_indices))
         return select_trees