Update app.py

app.py

@@ -9,13 +9,17 @@ col1, col2, col3 = st.columns((1,1,1))
 
 with st.sidebar:
     csv = st.file_uploader(label='CSV file to analyse')
-    csv = st.selectbox(label=' Or Choose a Default Dataset', options=['flights.csv', 'titanic_cleaned.csv', 'pokemon_cleaned.csv', 'heart.csv'])
+    csv = st.selectbox(label=' Or Choose a Default Dataset', options=['heart.csv', 'flights.csv', 'titanic_cleaned.csv', 'pokemon_cleaned.csv'])
 
     corr_type = st.selectbox(label='Correlation Type', options=['kendall', 'pearson', 'spearman'])
     th = st.slider(label='Correlation Threshold', min_value=0., max_value=1., value=0.15, step=0.01)
 
     but = st.button("Show Correlation Graph",)
 
+if but == False:
+    graph_html = display_graph(csv_file='heart.csv', threshold=0.15, corr_type='kendall')
+    st.components.v1.html(graph_html, width=None, height=2000)
+
 if but == True:
     graph_html = display_graph(csv_file=csv, threshold=th, corr_type=corr_type)
     st.components.v1.html(graph_html, width=None, height=2000)