CLN Update var name in TargetEncoder to make consistent (#27033)

lucyleeow · web-flow · commit 5ecfa8d696c5 · 2023-08-08T18:08:06.000-04:00
diff --git a/sklearn/preprocessing/_target_encoder.py b/sklearn/preprocessing/_target_encoder.py
@@ -273,14 +273,14 @@ def transform(self, X):
         X_trans : ndarray of shape (n_samples, n_features)
             Transformed input.
         """
-        X_ordinal, X_valid = self._transform(
+        X_ordinal, X_known_mask = self._transform(
             X, handle_unknown="ignore", force_all_finite="allow-nan"
         )
         X_out = np.empty_like(X_ordinal, dtype=np.float64)
         self._transform_X_ordinal(
             X_out,
             X_ordinal,
-            ~X_valid,
+            ~X_known_mask,
             slice(None),
             self.encodings_,
             self.target_mean_,
