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256 questions
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Fourier transformation with mathdotnet in F#

I am trying to use the Math.NET numerics implementation of the FFT algorithm, but I must be doing something wrong because the output is always unit The following is the the setup: open MathNet.Numerics open MathNet.Numerics.Statistics open…
user1129988
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Calculate m 1 ,m 2 for y=m 1 x 1 +m 2 x 2 using Math.NET

Given these values: x1 = {1, 3, 6, 8} x2 = {2 ,8, 5, 10} y = {8.6, 30.8, 34.1, 53.8} And this formula y = m1 * x1 + m2 * x2 Is there a way to determine m1 and m2 using Math.NET or an equivalent C# library? (The expected result for these…
Jonathan Allen
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Floor and Truncate different when debugging

I'm using Math.Net to calculate the determinate of basic matrices for a larger project. As part of my unit tests I was having issues that converting a float to an int was different when debugging the test. It seems attaching the debugger produces…
Jonathan
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MathNet Matrix MapIndexInplace confusion about arguments

The Matrix function MapIndexInplace is documented to take a Func (int, int, float, float). I don't understand what the second float value is. Can anyone explain?
N Joshua Madan
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How to create a submatrix skipping a row and a column using Mathnet.numerics library?

I am trying to code to obtain minors of different elements in a matrix. I am using Mathnet.numerics library. I see the library has submatrix method where I need to input rowindex and rowcount. But for my case I need to create submatrix by skipping…
Farhan Rahman
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Using Math.NET to calculate students-t confidence interval that the mean of a set of data is greater than 0

If a have a sample of data in c#, let's say a List. How would I use Math.Net to calculate the probability that the mean of the data is greater than zero, using the students-t distribution. I can see Math.Net has a set of functions pertaining to…
Craig
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Difference between Matrix, SparseMatrix, and DenseMatrix in MathNet Numerics?

I understand that some matrices have a lot of data, while others have mainly 0's or are empty. But what is the advantage of creating a SparseMatrix object to hold a sparsely populated matrix over creating a DenseMatrix object to hold a sparsely…
covfefe
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Compiler error calling MathNet Numerics DelimitedWriter.WriteFile

I'm trying to write a DenseMatrix object to a csv file using DelimitedWriter like so: DelimitedWriter.WriteFile(originalData, "written.csv", ","); A red line would appear saying that the type arguments for the method cannot be inferred from the…
covfefe
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Bessel function of first kind from math.net

I need to use the bessel function of the first kind in unity3d (using c#). After trying to use the mathnet.numerics .dll in unity I found many errors apparently due to unity3d not supporting .NET 4. I decided to then use jetbrains dotPeek decompiler…
KMoore
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How to get vector magnitude using MathNET.Numerics?

I'm trying to get the magnitude of a vector and I tried using the L2Norm() method but there was a red line under it stating that MathNet.Numerics.LinearAlgebra.Double.Vector does not contain a definition for L2Norm and no extension method L2Norm…
covfefe
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Multiple Linear Regression math.net 2.6 with Fit.LinearMultiDim

Reffering to the question: Multiple Regression with math.net @christoph-ruegg Can you provide me an example of resolving regression using Fit.LinearMultiDim. var xdata = new DenseMatrix( new double[,]{{1, 36, 66, 45, 32}, …
Piotr Leniartek
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Linear Algebra MatrixMultiply method

EDIT: After fixing the syntax error and working with this algorithm I found the MKL provider is not the matrix multiplication needed. This algorithm simply multiplies element by element and does not compute the dot(row_n,column_n) as I had…
Felix Castor
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Extract row from Deedle and convert to Matrix

I am trying to extract a row from a Deedle Frame and convert it to a flat (1x4) DenseMatrix. All missing values have been dropped and the values in the Frame are numerical. My code: let matrix = let curr = seq { yield…
NoIdeaHowToFixThis
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MathNet.Numerics operation return types

I'm using MathsNet.Numerics lib. I want to do operations on Complex Vectors i.e. I'm using MathNet.Numerics.LinearAlgebra.Complex which gives me Vector as Complex version of MathNet.Numerics.LinearAlgebra.Generic.Vector Operatations on Vectors…
Ricibob
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Build a project with Math.net Numerics and C#

I have no experience over C# and i do not know how to use those binaries i downloaded there : http://mathnetnumerics.codeplex.com/releases/view/101319 How do i include and build those in my project so i can make a standalone when the project is …
Fawar
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