Refactorings Code and Adding Node Filter

netbone/filters.py

@@ -60,16 +60,9 @@ def fraction_filter(backbone, value, narrate=True, secondary_property='weight',
             value = math.ceil(value * len(data))
             return nx.from_pandas_edgelist(data[:value], edge_attr=edge_properties(data))
         else:
-            print('hereeeeeeee')
-
             b = backbone.graph.copy()
             value = math.ceil(value * len(backbone.graph))
-
-            print(value)
-
-            print(list(data[:value].index))
-            b.remove_nodes_from(list(data[:value].index))
-            return b
+            return b.subgraph(list(data[:value].index))
 
     print("The accepted filters for " + backbone.method_name + " are: " + ', '.join(
         [fun.__name__ for fun in backbone.compatible_filters()]))