Create app.py

app.py

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+import streamlit as st
+import pandas as pd
+import altair as alt
+
+# Load hospital dataset
+hospitals_df = pd.read_csv("https://data.medicare.gov/api/views/xubh-q36u/rows.csv?accessType=DOWNLOAD")
+
+# Filter for the largest hospital in each state
+largest_hospitals_df = hospitals_df.loc[hospitals_df.groupby("State")["Hospital overall rating"].idxmax()]
+
+# Select columns to display
+cols_to_display = ["State", "Hospital Name", "City", "Zip Code", "lat", "lng"]
+
+# Create a Streamlit table to display the largest hospitals
+st.table(largest_hospitals_df[cols_to_display])
+
+# Define chart functions
+def stacked_bar_chart():
+    chart = alt.Chart(largest_hospitals_df).mark_bar().encode(
+        x=alt.X('State:N'),
+        y=alt.Y('count():Q', stack="normalize"),
+        color=alt.Color('Hospital Type:N'),
+        tooltip=['Hospital Name', 'City', 'Hospital overall rating']
+    ).properties(
+        width=700,
+        height=400,
+        title='Number of Hospitals by State and Type'
+    )
+    text = chart.mark_text(
+        align='center',
+        baseline='middle',
+        dx=0,
+        dy=5,
+        color='white'
+    ).encode(
+        text=alt.Text('count():Q', format='.1f')
+    )
+    st.altair_chart(chart + text)
+
+def bump_chart():
+    chart = alt.Chart(largest_hospitals_df).transform_rank(
+        'Hospital overall rating',
+        groupby=['State']
+    ).mark_line().encode(
+        x='rank:Q',
+        y=alt.Y('Hospital Name:N', sort='-x'),
+        color=alt.Color('State:N'),
+        tooltip=['City', 'Zip Code', 'Hospital overall rating']
+    ).properties(
+        width=700,
+        height=400,
+        title='Hospital Rankings by State'
+    )
+    st.altair_chart(chart)
+
+# Define chart buttons
+st.sidebar.header('Select a Chart')
+chart_options = ['Stacked Bar Chart with Text Overlay', 'Bump Chart']
+chart_choice = st.sidebar.selectbox('', chart_options)
+
+# Call chart functions based on user input
+if chart_choice == 'Stacked Bar Chart with Text Overlay':
+    stacked_bar_chart()
+elif chart_choice == 'Bump Chart':
+    bump_chart()