Update app.py

app.py

@@ -46,28 +46,28 @@ with ui.layout_columns(fill=False):
 
         @render.express
         def total_tippers():
-            tips_data().shape[0]
+            data = tips_data()
+            return data.shape[0]
 
     with ui.value_box(showcase=ICONS["wallet"]):
         "Average tip"
 
         @render.express
         def average_tip():
-            d = tips_data()
-            if d.shape[0] > 0:
-                perc = d.tip / d.سن
-                f"{perc.mean():.1%}"
+            data = tips_data()
+            if data.shape[0] > 0:
+                perc = data.tip / data.سن
+                return f"{perc.mean():.1%}"
 
     with ui.value_box(showcase=ICONS["currency-dollar"]):
         "Average bill"
 
         @render.express
         def average_bill():
-            d = tips_data()
-            if d.shape[0] > 0:
-                bill = d.سن.mean()
-                f"${bill:.2f}"
-
+            data = tips_data()
+            if data.shape[0] > 0:
+                bill = data.سن.mean()
+                return f"${bill:.2f}"
 
 with ui.layout_columns(col_widths=[6, 6, 12]):
     with ui.card(full_screen=True):
@@ -92,8 +92,11 @@ with ui.layout_columns(col_widths=[6, 6, 12]):
         @render_plotly
         def scatterplot():
             color = input.scatter_color()
+            data = tips_data()
+            if data.shape[0] == 0:
+                return {}  # return empty plot if no data available
             return px.scatter(
-                tips_data(),
+                data,
                 x="سن",
                 y="id",
                 color=None if color == "none" else color,
@@ -118,6 +121,9 @@ with ui.layout_columns(col_widths=[6, 6, 12]):
             from ridgeplot import ridgeplot
 
             dat = tips_data()
+            if dat.shape[0] == 0:
+                return {}  # return empty plot if no data available
+
             dat["percent"] = dat.tip / dat.سن
             yvar = input.tip_perc_y()
             uvals = dat[yvar].unique()
@@ -151,10 +157,9 @@ ui.include_css(app_dir / "styles.css")
 @reactive.calc
 def tips_data():
     سنی = input.سن()
-    idx1 = tips.سن.between(bill[0], bill[1])
-    idx2 = tips.time.isin(input.time())
-    return tips[idx1 & idx2]
-
+    idx1 = tips.سن.between(سنی[0], سنی[1])  # Corrected range filter
+    idx2 = tips.time.isin(input.time())  # Filter based on selected time (Twitter, Instagram)
+    return tips[idx1 & idx2]  # Apply filters to the tips data
 
 @reactive.effect
 @reactive.event(input.reset)