Update app.py

app.py

@@ -11,14 +11,9 @@ def plot_graph(file):
 
     df[x_axis] = pd.to_datetime(df[x_axis])
 
-    plt.figure(figsize=(10, 5))
-    for label, group_df in df.groupby(group_label):
-        plt.plot(group_df[x_axis], group_df[y_axis], label=label)
-
+    plt.figure()
+    df.plot()
     
-    plt.title(f'{y_axis} of {group_label} over {x_axis}')
-    plt.xlabel(x_axis)
-    plt.ylabel(y_axis)
     plt.legend(title=group_label)
     plt.grid(True)
     plt.xticks(rotation=45)