@@ -99,6 +99,10 @@ class Learner1D(BaseLearner):

     def data_combined(self):

         return {**self.data, **self.data_interp}

+    @property

+    def n(self):

+        return len(self.data)

+

     def loss(self, real=True):

         losses = self.losses if real else self.losses_combined

         if len(losses) == 0: