Cannot convert arrays to ndarray

When I try to convert any array to ndarray I get this error:

System.ArgumentException: ‘Object contains non-primitive or non-blittable data.’

and I get the error in the new NDArray

var ctx = mx.Cpu();
float[][] labels= training_labels.ToArray(); // [1000][1]
var train_y1 = new NDArray(labels, new Shape(labels.Count(), 1), ctx: ctx, DType.Float16);

Is there a way to convert List of array of floats to NDArray ?

Thanks!

[deepakkumar1984]

Glad it worked, I will have a look into IEnumerable and probably will try to fix that.

On Fri, Apr 9, 2021 at 3:57 AM evo11x @.***> wrote:

With this code I got the error

IList<IList<float[]>> training_data = training.Select(v => v.GetFeatures()).ToList(); var x = new NDArray(training_data.ToArray(), new Shape(100, 17));

Now I have changed as you said to simple array and it looks like it works…

float[,] training_data = new float[1000, 17, 100]; var x = new NDArray(training_data, new Shape(100, 17));

You have any ideea why IEnumerable.ToArray does not work?

Thanks!

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– Regards, Deepak

[evo11x]

Is there an NDArray function to add elements? or change values of the array? I still having problems copying the 3D array to float[,] and it would be useful to create the NDArray directly from my list of arrays without creating a float[,] first.