Global fit of multiple data sets with shared parameters
When fitting mathematical models to data, it is often not enough to simply fit one dataset; it is necessary to globally fit many sets simultaneously, for which some of the model parameters are shared,...
View ArticleUpgrade MathNet Native MKL provider for Linux
Hi, At my firm, we use MathNet Numeric with Native MKL provider (version 2.3.0) on window. We are planning to migrate to Linux, but most recent version for MathNet.Numerics.MKL.Linux-x64 available at...
View ArticlePearson correlation with pairwise deletion for missing data
We are trying to estimate the Pearson correlation matrix for a data set that includes missing (NaN) values. However, it seems that if there is any missing values, the PearsonMatrix method just returns...
View ArticleHow to Find Outliers in a dataset?
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View ArticleNative dlls in Native providers packages
Hi, Looking at the alpha releases of the native providers, i can’t find the actual native dlls in the package. This is true for all native providers i checked, including MKL and OpenBLAS that used to...
View ArticleVB.net Solver example
Dear all This is my first try in this forum. I’m a beginner with vb.net and I have no idea how C# works or how to read C#. The examples I found concerning my problem are all in c#. I’m not able to...
View ArticleVB.NET & MathNet Linear Algebra Vector Declaration
Has anybody a few code lines to declar the vectors correct in VB.NET with MathNet.Numeric? Thanks a lot, Best regards, Martini 1 post - 1 participant Read full topic
View ArticleWhat happens to memory used in Fit.Curve when...
I have the following C# code to do a Gaussian function curve fitting. I am having out-of-memory issue when MathNet.Numerics.Optimization.MaximumIterationsException is raised. How does Fit.Curve...
View ArticleWhy I get different coef values when using polynomial fit and compare to...
Hi all; I’m trying to fit several data to a polynomial using Math Numerics, for example this one: double[] X = {3240.066852, 2981.202863, 2701.003929, 2390.936074, 2100.780834, 1820.581901,...
View ArticleSystem.NotSupportedException in MathNet.Numerics.dll
Hi. I have a VB .NET application where I want to use some of the MathNet functionality. I already use Fit.Curve which does work fine. Now I want to do FFT. When I use...
View ArticleGRG Non Linear Solver Equivalent
I am looking to use Math.NET to implement the excel GRG Non Linear solver in C#. This seems to fall under the non linear optimization topic in Math.NET and I was able to find a few examples of...
View ArticleSrongly naming the assemblies
Hi Math.NET devs, Great library! Thank you! Any chance for strongly naming the assemblies for distribution? 3 posts - 2 participants Read full topic
View ArticleOptimization with Hessian
What would be the best optimization class for a function with known gradient and Hessian? I need test examples as well - can’t find them in the repository. I would appreciate some hints on how to...
View ArticleMath.NET in Unity
Does anyone have experience using Math.NET in Unity? Specifically, does anyone know of projects which have successfully used the library in Unity games deployed for iOS or Android? My company is...
View ArticleTrustRegionNewtonCGMinimizer test and reference to publication
Can’t find tests for TrustRegionNewtonCGMinimizer. I would also appreciate a reference to the description of the method. 1 post - 1 participant Read full topic
View ArticleHow to jump-start with mathnet as a novice?
I have a concrete problem to solve. However, I have difficulty to start with MathNet Minimization. I learned to use the Maxtrix stuff. But the Minimization facilities baffle me. Let me be concrete: I...
View ArticleHow to use the BfgsBMinimizer and Neldermeadex class
I’m going to implement the following code (Python) in Math.Net: def fun(): #somecode return v def con(args): x1min, x1max, x2min, x2max= args cons = ({'type': 'ineq', 'fun': lambda x: x[0] - x1min},...
View ArticleBest way to grow a matrix?
I have a routine where I am adding an unknown amount of rows to a Matrix. What is the fastest, most efficient way to grow the Matrix? Anything better than: Matrix<double> origDb =...
View ArticleHow to set boundaries for interpolation / extrapolation?
I have the following code: LinearSpline spline = LinearSpline.InterpolateSorted(new double[] { 0, 1, 2, 4 }, new double[] { -0.5, -0.5, -0.3, -0.2 }); spline.Interpolate(10); I want to get “-0.2” as...
View Article1D Linear Interpolation in VB.net
I’m trying to recreate a curve, given with two arrays (one for x and one for y), using Math.NET with VB.net. In particular I need to rebuild this curve using 1D Linear Interpolation. I looked into...
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