# applied(toWindow:eventHandler:) Performs a prediction on a window of input features. ``` func applied(toWindow input: MLShapedArray, eventHandler: EventHandler? = nil) async throws -> MLShapedArray ``` ## Parameters `input` An window of input features with shape `[inputWindowSize, featureSize]`. `eventHandler` An event handler. ## Return Value A shaped array of predictions with shape `[forecastWindowSize, annotationSize]`. --- 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)