Update app.py

app.py

@@ -1009,7 +1009,7 @@ with ui.navset_card_tab(id="tab"):
                 for param_type in param_types:
                     for loss_type in loss_types:
                         for model_type in model_types:
-                            y = df[df['param_type'] ==param_type && df['loss_type'] == loss_type && df['model_type'] == model_type]['loss'].dropna().astype('float', errors = 'ignore').dropna().values
+                            y = df[(df['param_type'] ==param_type) & (df['loss_type'] == loss_type ) & (df['model_type'] == model_type)]['loss'].dropna().astype('float', errors = 'ignore').dropna().values
                             f = interp1d(np.linspace(0, 1, len(y)), y)
                             loss_rates.append(f(x))
                             labels.append(str(param_type) +'_'+loss_type +'_'+model_type)