Update app.py

app.py

@@ -10,7 +10,13 @@ def compare_csv_files():
     
     merged_df = pd.merge(df1, df2, on="SourceText", suffixes=("_1.5", "_1.4"))
     merged_df["WordErrorRate_Diff"] = merged_df["WordErrorRate_1.5"] - merged_df["WordErrorRate_1.4"]
-    merged_df["CharacterErrorRate_Diff"] = merged_df["CharacterErrorRate_1.5"] - merged_df["CharacterErrorRate_1.4"]
+    if merged_df["WordErrorRate_Diff"] > 0: merged_df["WordErrorRate_Diff"] = f"1.5 is stronger than 1.4 ({merged_df["WordErrorRate_Diff"]})"
+    if merged_df["WordErrorRate_Diff"] < 0: merged_df["WordErrorRate_Diff"] = f"1.4 is stronger than 1.5 ({0 - merged_df["WordErrorRate_Diff"]})"
+    if merged_df["WordErrorRate_Diff"] == 0: merged_df["WordErrorRate_Diff"] = f"1.4 is the same as 1.5 (0)"
+    if merged_df["CharacterErrorRate_Diff"] > 0: merged_df["CharacterErrorRate_Diff"] = f"1.5 is stronger than 1.4 ({merged_df["CharacterErrorRate_Diff"]})"
+    if merged_df["CharacterErrorRate_Diff"] < 0: merged_df["CharacterErrorRate_Diff"] = f"1.4 is stronger than 1.5 ({0 - merged_df["CharacterErrorRate_Diff"]})"
+    if merged_df["CharacterErrorRate_Diff"] == 0: merged_df["CharacterErrorRate_Diff"] = f"1.4 is stronger than 1.5 ({0 - merged_df["CharacterErrorRate_Diff"]})"\
+    if merged_df["CharacterErrorRate_Diff"] == 0: merged_df["CharacterErrorRate_Diff"] = f"1.4 is the same as 1.5 (0)"
     
     comparison = merged_df[[
         "SourceText",