How to initialize a MLMultiArray in CoreML

Question

I\'ve got an array of 40 arrays with 12 double features, so the type is [[double]]. Currently I\'m sending this data to Google Cloud ML API to get a related prediction.

Answer 1

I achieved it by reading this blog :)

let data = _currentScaledMotionArrays.reduce([], +) //result is of type [Double] with 480 elements
guard let mlMultiArray = try? MLMultiArray(shape:[40,12], dataType:MLMultiArrayDataType.double) else {
    fatalError("Unexpected runtime error. MLMultiArray")
}
for (index, element) in data.enumerated() {
    mlMultiArray[index] = NSNumber(floatLiteral: element)
}
let input = PredictionModelInput(accelerations: mlMultiArray)
guard let predictionOutput = try? _predictionModel.prediction(input: input) else {
        fatalError("Unexpected runtime error. model.prediction")
}