Update app.py

app.py

@@ -61,9 +61,15 @@ if uploaded_files:
     
     for i, df in enumerate(dataframes):
         st.dataframe(df)
-    columns = st.selectbox("Select  column", df.columns)
+    
     selected_values = st.multiselect("เลือกค่าจากคอลัมน์", df.columns)
-    st.write("ค่าที่ถูกเลือก:", selected_values)
+    
+    convert_to_float = st.checkbox("Convert to float", value=False)
+    if convert_to_float:
+    for col in selected_columns:
+        df[col] = df[col].astype(float)
+
+