Non-linear regression least squares curve fitting with constraints/bounds
@kdeman wrote: Hello, Let me start of by saying that I’m not an expert in mathematics but I have used curve fitting algorithms in the past. I need to translate Python code (which uses Scipy) to C#. I...
View Article3D scalar field intepolation
@kanchannmahajan wrote: I have a scalar field for points in 3d (x,y,z), which i would like to map to another set of points in 3d. the input data looks somethind as follows where v is the scalar field...
View ArticleCurve fitting to a*cos^2(b+x)
@gyomihaly wrote: I would like to fit A*cos^2(B+x)=y function to a few points (I’m searching for the values of A and B). I know that the frequency is 1 and there is no bias, also A is between 0 and 1...
View ArticleCan custom numerics types be used in Matrix Solvers in mathdotnet?
@Leandro_Alsina wrote: Using MathNet Numerics in C#. I want to solve a Linear Equation system, with my own numeric type. I created ComplexDecimal, it is for complex numbers, but internally it uses...
View ArticleUsing MathNet.NumericsMKL.Winx64
@wil wrote: I have an older Visual Studio 2012 C# .NET 4.5 project that uses a reference to the the MathNet.Numerics.dll for Linear Algebra. In the project code I used the following fragment to...
View ArticleUsing MathNet to convert an Excel Solver problem to C#
@brent wrote: Hello, I’m completely new to Math.Net and hoping for some guidance on how to solve a particular problem I’m having. Essentially, what I’m wanting to do is recreate the Solver...
View ArticleI need help with compressed row storage
@LuigiCimorelli wrote: I need someone to help me with sparsecompressedrowstorage class. I’m quite new to math.net. I used to write linear system solver on my own. Recently, I’ve decided to use...
View ArticleQuestion about linear splines
@jjk wrote: I have a question about the linear splines option in your package. The documentation is here: https://numerics.mathdotnet.com/api/MathNet.Numerics.Interpolation/LinearSpline.htm My...
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Math.NET and Hardware Intrinsics
@geoeo wrote: Is Math.NET planning to add support for the announced hardware intrinsics in .NetCore 3? fiigii.com Hardware intrinsic in .NET Core 3.0 - Introduction In the past two years, I worked for...
View ArticleHolt-Winters forecasting model
@SteveVanAken wrote: Hello, Is this forecasting method available somehow? Posts: 3 Participants: 2 Read full topic
View ArticleNelderMeadSimplex.Minimum() throws exception
@Mattias_Andersson wrote: Hi all, I’ve got the following code: // F, I, Precision and MaxEvaluations are defined elsewhere try { var Function = ObjectiveFunction.Value(new...
View ArticleIntel MKL version 2019 Update 3
@jbesada wrote: Are you planning to include the latest version of the Intel MKL library? Thank you. Posts: 1 Participants: 1 Read full topic
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Fit values to a function and evaluate it
@petrasvestartas wrote: Hi, I am totally new to math numerics and concepts of polynomials. I would like to ask how can I fit an array of x and y values in order to get a function. I attached the x and...
View ArticleCannot find a Hadamard operation between a vector and a matrix that return a...
@TomC wrote: I can do the following using numpy: a = np.array([[1,2],[3,4],[5,6]]) # a 3x2 matrix b = np.array([1, 2, 3]) # a 1x3 array c = np.multiply(a.T,b) print© returns [[ 1 2] [ 6 8] [15 18]]...
View ArticleHow can I find Math.Net Numerics Technical Theory or Referance
@qoqo wrote: I’m working on a project and in this project I’m using in Math.Net Numerics Interpolate class. Then, I want to learn that how can i find technical referance. For example; Math.Net...
View ArticleCombinatorial optimization in `MathNet.Numerics.Optimization`
@fuglede wrote: I tend to generally view MathNet.Numerics.Optimization as a .NET parallel to Python’s scipy.optimize, and in particular, both have a strong set of implementations for general...
View ArticleCubic spline interpolation in 3D
@afshinbr2003 wrote: First of all thank you very much for your interesting website. I have a question that I hope you can help me. I have some points contain x,y and z parameter. I want to calculate z...
View ArticleKernel Density Estimation for 2 dimension
@namen_achetman wrote: Hi everyone, I am trying to do (nd in the best case, at least 2d) kernel density estimation. I think this library can help me. But I am a complete beginner with mathnet, I am...
View ArticleGeometric Algebra
@ajwillshire wrote: Hi, I did a bit of work, as a hobby-type project, on implementing a Geometric Algebra library in F# and I recently did a presentation on it at an F# meetup. It’s at a really early...
View ArticleResiduals multiple linear regression OLS; partial correlation
@GerS wrote: How can I get the residuals of a multiple linear regression with OLS? In Java (Apache.Common.Math3) there is the function OLS.estimateResiduals() after the input OLS.newSampleData with a...
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