fixes

Author: GiovanniCanali

pina/model/block/message_passing/radial_field_network_block.py

@@ -97,7 +97,7 @@ def forward(self, x, edge_index):
         """
         return self.propagate(edge_index=edge_index, x=x)
 
-    def message(self, x_j, x_i):
+    def message(self, x_i, x_j):
         """
         Compute the message to be passed between nodes and edges.
 

pina/utils.py

@@ -202,7 +202,7 @@ def check_positive_integer(value, strict=True):
     :param int value: The value to check.
     :param bool strict: If True, the value must be strictly positive.
         Default is True.
-    :raises ValueError: If the value is not a positive integer.
+    :raises AssertionError: If the value is not a positive integer.
     """
     if strict:
         assert (