Update app.py

app.py

@@ -64,8 +64,7 @@ if uploaded_files:
     
     selected_values = st.multiselect("เลือกค่าจากคอลัมน์", df.columns)
     
-    convert_to_float = st.checkbox("Convert to float", value=False)
-    if convert_to_float:
+    if selected_columns:
     for col in selected_columns:
         df[col] = df[col].astype(float)