fixes #6

src/maggotuba/models/trainers.py

@@ -71,7 +71,7 @@ class MaggotTrainer:
 
     def pad(self, target_t, defined_t, data):
         if data.shape[0] == 1:
-            return data
+            return np.repeat(data, len(target_t), axis=0)
         else:
             head = searchsortedfirst(target_t, defined_t[0])
             tail = len(target_t) - (searchsortedlast(target_t, defined_t[-1]) + 1)