Support MAE for all backends (#1972)

kyouma · web-flow · commit da2ec60352ad · 2025-03-27T23:02:02.000-04:00
diff --git a/deepxde/losses.py b/deepxde/losses.py
@@ -4,8 +4,7 @@
 
 
 def mean_absolute_error(y_true, y_pred):
-    # TODO: pytorch
-    return tf.keras.losses.MeanAbsoluteError()(y_true, y_pred)
+    return bkd.reduce_mean(bkd.abs(y_true - y_pred))
 
 
 def mean_absolute_percentage_error(y_true, y_pred):
