Update app.py

app.py

@@ -50,9 +50,9 @@ def read_label_frequencies():
 
 def get_label_fractions(label_counts_dict):
     print("Getting label proportions.")
-    label_list = list(label_counts.keys())
-    denom = sum(label_counts.values())
-    label_fractions = [label_counts[key]/denom for key in label_counts]
+    label_list = list(label_counts_dict.keys())
+    denom = sum(label_counts_dict.values())
+    label_fractions = [label_counts_dict[key]/denom for key in label_counts_dict]
     return label_list, label_fractions