# ImputeTransformer A transformer that replaces missing values with a pre-defined value. ``` struct ImputeTransformer where Element : Decodable, Element : Encodable ``` ## Topics ### Creating a transformer [`init(value: Element)`](/documentation/CreateMLComponents/ImputeTransformer/init(value:)) Creates an impute transformer. ### Getting the impute value [`var value: Element`](/documentation/CreateMLComponents/ImputeTransformer/value) Impute value used to replace missing values. ### Performing the transformation [`func applied(to: Element?, eventHandler: EventHandler?) -> Element`](/documentation/CreateMLComponents/ImputeTransformer/applied(to:eventHandler:)) Imputes a single input. ## Relationships ### Conforms To [`Transformer`](/documentation/CreateMLComponents/Transformer) [`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible) [`Sendable`](/documentation/Swift/Sendable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Copyable`](/documentation/Swift/Copyable) [`Escapable`](/documentation/Swift/Escapable) [`Encodable`](/documentation/Swift/Encodable) [`Equatable`](/documentation/Swift/Equatable) [`Hashable`](/documentation/Swift/Hashable) [`Decodable`](/documentation/Swift/Decodable) --- 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)