# MLShapedArraySlice A multidimensional subset of elements from a shaped array type. ``` struct MLShapedArraySlice where Scalar : MLShapedArrayScalar ``` ## Topics ### Creating a shaped array slice [`init(scalar: Scalar)`](/documentation/CoreML/MLShapedArraySlice/init(scalar:)) Creates a shaped array slice with exactly one value and zero dimensions. [`init(scalars: S, shape: [Int])`](/documentation/CoreML/MLShapedArraySlice/init(scalars:shape:)) Initialize with a sequence and the shape. [`init(mutating: CVPixelBuffer, shape: [Int])`](/documentation/CoreML/MLShapedArraySlice/init(mutating:shape:)) Creates a new `MLShapedArraySlice` using a pixel buffer as the backing storage. ### Creating a shaped array slice from another type [`init(MLMultiArray)`](/documentation/CoreML/MLShapedArraySlice/init(_:)) Creates a new MLShapedArraySlice using a `MLMultiArray` as a backing storage. [`init(concatenating: S, alongAxis: Int)`](/documentation/CoreML/MLShapedArraySlice/init(concatenating:alongAxis:)) Merges a sequence of shaped arrays into one shaped array along an axis. ### Creating a shaped array slice with pointers to memory [`init(unsafeUninitializedShape: [Int], initializingWith: (inout UnsafeMutableBufferPointer, [Int]) throws -> Void) rethrows`](/documentation/CoreML/MLShapedArraySlice/init(unsafeUninitializedShape:initializingWith:)) Creates a shaped array slice from a shape and a closure that initializes its memory. ### Creating a shaped array slice with data [`init(data: Data, shape: [Int])`](/documentation/CoreML/MLShapedArraySlice/init(data:shape:)) Creates a shaped array with a defined data and shape. [`init(data: Data, shape: [Int], strides: [Int])`](/documentation/CoreML/MLShapedArraySlice/init(data:shape:strides:)) Creates a shaped array with defined data, shape, and strides. ### Shaping the array slice [`func changingLayout(to: MLShapedArrayBufferLayout) -> MLShapedArraySlice`](/documentation/CoreML/MLShapedArraySlice/changingLayout(to:)) Returns a copy with the specified buffer layout. [`func expandingShape(at: Int) -> MLShapedArraySlice`](/documentation/CoreML/MLShapedArraySlice/expandingShape(at:)) Returns a new shaped array with expanded dimensions [`func reshaped(to: [Int]) -> MLShapedArraySlice`](/documentation/CoreML/MLShapedArraySlice/reshaped(to:)) Returns a new reshaped shaped array. [`func squeezingShape() -> MLShapedArraySlice`](/documentation/CoreML/MLShapedArraySlice/squeezingShape()) Returns a new squeezed shaped array. [`func transposed() -> MLShapedArraySlice`](/documentation/CoreML/MLShapedArraySlice/transposed()) Returns a new transposed shaped array [`func transposed(permutation: [Int]) -> MLShapedArraySlice`](/documentation/CoreML/MLShapedArraySlice/transposed(permutation:)) Returns a new transposed shaped array using a custom permutation. ### Modifying a shaped array type [`func withUnsafeMutableShapedBufferPointer(using: MLShapedArrayBufferLayout, (inout UnsafeMutableBufferPointer, [Int], [Int]) throws -> R) rethrows -> R`](/documentation/CoreML/MLShapedArraySlice/withUnsafeMutableShapedBufferPointer(using:_:)) Calls the given closure with a pointer to the array’s mutable storage that has a specified buffer layout. ### Encoding and decoding an array slice [`init(from: any Decoder) throws`](/documentation/CoreML/MLShapedArraySlice/init(from:)) Creates an array slice from the passed decoder. [`func encode(to: any Encoder) throws`](/documentation/CoreML/MLShapedArraySlice/encode(to:)) Encodes the array slice. ### Default Implementations [Decodable Implementations](/documentation/CoreML/MLShapedArraySlice/Decodable-Implementations) [Encodable Implementations](/documentation/CoreML/MLShapedArraySlice/Encodable-Implementations) ## Relationships ### Conforms To [`Copyable`](/documentation/Swift/Copyable) [`BidirectionalCollection`](/documentation/Swift/BidirectionalCollection) [`Encodable`](/documentation/Swift/Encodable) [`ExpressibleByArrayLiteral`](/documentation/Swift/ExpressibleByArrayLiteral) [`MutableCollection`](/documentation/Swift/MutableCollection) [`RandomAccessCollection`](/documentation/Swift/RandomAccessCollection) [`MLShapedArrayProtocol`](/documentation/CoreML/MLShapedArrayProtocol) [`Collection`](/documentation/Swift/Collection) [`Equatable`](/documentation/Swift/Equatable) [`Sequence`](/documentation/Swift/Sequence) [`Escapable`](/documentation/Swift/Escapable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Decodable`](/documentation/Swift/Decodable) [`Sendable`](/documentation/Swift/Sendable) --- 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)