# append(contentsOf:) Appends the elements of the given column to the end of this column. ``` mutating func append(contentsOf newColumn: MLDataColumn) ``` ## Parameters `newColumn` A column to append. ## Discussion> Note: The type of `newColumn` must be the same type or convertible to the same type as the column. See > ``doc://com.apple.createml/documentation/CreateML/MLDataValueConvertible``. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)