Update src/streamlit_app.py

src/streamlit_app.py

@@ -273,21 +273,21 @@ st.markdown("<div class='sectionheader'>Crime Hotspots by Region NO MAP</div>",
 
 # 1. Aggregate total incidents by region and pick top 10
 region_counts = (
-    df['RegionName']
-      .value_counts()
-      .reset_index()
-      .rename(columns={'index':'Region', 'RegionName':'Count'})
+    df
+      .groupby("RegionName")            # group by your text field
+      .size()                           # count rows
+      .reset_index(name="Count")        # turn it into a DataFrame with columns RegionName & Count
 )
-top_regions = region_counts.head(10)
+top_regions = region_counts.head(10, "Count"))
 
 # 2. Build the bubble chart
 fig = px.scatter(
     top_regions,
-    x='Region',
+    x='RegionName',
     y='Count',
     size='Count',               # bubble area ∝ incident count
     color='Count',              # color scale also shows volume
-    hover_name='Region',        # show region on hover
+    hover_name='RegionName',        # show region on hover
     hover_data={'Count':True},
     size_max=60,                # max bubble diameter
     title='Top 10 Regions by Crime Volume (Bubble Chart)'