stable version

app.py

@@ -5,8 +5,6 @@ st.set_page_config(layout="wide")
 
 st.title("Graph Correlation")
 
-col1, col2, col3 = st.columns((1,1,1))
-
 if 'default' not in st.session_state:
     st.session_state.default = True
 
@@ -15,17 +13,16 @@ def default():
 
 with st.sidebar:
 
-    upload_csv = st.file_uploader(label='CSV file to analyse')
-
-    default_csv = st.selectbox(label=' Or Choose a Default Dataset', options=['spotify.csv', 'heart.csv', 'titanic.csv', 'pokemon.csv'])
-    default_csv = 'datasets/'+default_csv
+    def_csv = st.selectbox(label='Demo Datasets', options=['spotify.csv', 'heart.csv', 'titanic.csv', 'pokemon.csv'])
+    def_csv = 'datasets/'+def_csv
 
-    if upload_csv != False:
-        default_csv = False
+    csv = st.file_uploader(label='or upload a CSV file to analyse')
+    if csv == None:
+        csv=def_csv
 
-    corr_type = st.selectbox(label='Correlation Type', options=['kendall', 'pearson', 'spearman'])
+    corr_type = st.selectbox(label='Correlation Type', options=['kendall', 'pearson', 'spearman'], on_change=default)
 
-    th = st.slider(label='Correlation Threshold', min_value=0., max_value=1., value=0.15, step=0.01)
+    th = st.slider(label='Correlation Threshold', min_value=0., max_value=1., value=0.15, step=0.01, on_change=default)
 
     but = st.button("Display Correlation Graph", on_click=default)
 
@@ -33,10 +30,6 @@ if st.session_state.default:
     graph_html = display_graph(csv_file='datasets/spotify.csv', threshold=0.15, corr_type='kendall')
     st.components.v1.html(graph_html, width=None, height=2000)
 
-if (but == True) and (default_csv != False):
-    graph_html = display_graph(csv_file=default_csv, threshold=th, corr_type=corr_type)
-    st.components.v1.html(graph_html, width=None, height=2000)
-
-if (but == True) and (upload_csv != False):
-    graph_html = display_graph(csv_file=upload_csv, threshold=th, corr_type=corr_type)
+if but:
+    graph_html = display_graph(csv_file=csv, threshold=th, corr_type=corr_type)
     st.components.v1.html(graph_html, width=None, height=2000)