Update app.py

app.py

@@ -63,7 +63,8 @@ if uploaded_files:
         st.dataframe(df)
     
     selected_values = st.multiselect("เลือกค่าจากคอลัมน์", df.columns)
-    
+
+    convert_to_float = st.checkbox("convert columns to float", value=False)
     if selected_columns:
     for col in selected_columns:
         df[col] = df[col].astype(float)