Update app.py

app.py

@@ -410,6 +410,26 @@ def analyze_z_test(file):
     
     return result_dataframes
 
+def join_dataframes(mlist ,dataframes):
+    max_rows = max(df.shape[0] for df in dataframes)
+    result = pd.DataFrame()
+    i = 1
+    for df in dataframes:
+        rows_to_add = max_rows - df.shape[0]
+        if rows_to_add > 0:
+            # Create a DataFrame with empty rows
+            empty_rows = pd.DataFrame(index=range(rows_to_add), columns=df.columns)
+            #Fill empty rows with np.nan
+            empty_rows = empty_rows.fillna(np.nan)
+
+            df = pd.concat([df, empty_rows], ignore_index=True)
+        if not result.empty:
+          result = pd.concat([result, pd.DataFrame(columns=[mlist[i]])], axis=1)
+          i += 1
+
+        result = pd.concat([result, df.reset_index(drop=True)], axis=1)
+
+    return result
 
 def all_tabulation(df, main_dict, follow_dict):