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c#matrixmathnet-numerics
DarthVegan
DarthVegan

Reputation: 1269

Doing Matrix<double> instantiation programatically (Math.Net C# Library)

I know this is going to sound like a very beginner question but I'm using this C# library and even after reading the references, I'm not able to figure out how to do the following code.

Matrix Class Documentation is at https://numerics.mathdotnet.com/api/MathNet.Numerics.LinearAlgebra/Matrix%601.htm

I'm trying to do something similar to this but I can't figure it out

Matrix<double> matrix = new Matrix<double>();
matrix.Add(new List<double> list1());
matrix.Add(new List<double> list2());

This is what I have done so far to create a Matrix object and what I'm trying to do is create a Matrix for any amount instead of having to do a fixed amount in my code.

var matrixArrayBuy = CreateMatrix.DenseOfColumnArrays(listMRInfoBuy.ElementAt(0).ListValuesBuy.ToArray(), listMRInfoBuy.ElementAt(1).ListValuesBuy.ToArray(), listMRInfoBuy.ElementAt(2).ListValuesBuy.ToArray(),
                            listMRInfoBuy.ElementAt(3).ListValuesBuy.ToArray(), listMRInfoBuy.ElementAt(4).ListValuesBuy.ToArray(), listMRInfoBuy.ElementAt(5).ListValuesBuy.ToArray(), listMRInfoBuy.ElementAt(6).ListValuesBuy.ToArray(),
                            listMRInfoBuy.ElementAt(7).ListValuesBuy.ToArray(), listMRInfoBuy.ElementAt(8).ListValuesBuy.ToArray(), listMRInfoBuy.ElementAt(9).ListValuesBuy.ToArray(), listMRInfoBuy.ElementAt(10).ListValuesBuy.ToArray(),
                            listMRInfoBuy.ElementAt(11).ListValuesBuy.ToArray());

Upvotes: 0

Views: 188

Answers (1)

Ehz
Ehz

Reputation: 2067

Not sure what your listMRInfoBuy variable is, but could try something like:

    List<double[]> matrixParams = new List<double[]>();

    foreach (var item in listMRInfoBuy.Elements)
    {
        matrixParams.Add(item.ListValuesBuy.ToArray());
    }


    var matrixArrayBuy = CreateMatrix.DenseOfColumnArrays(matrixParams);

Upvotes: 2

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