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Asked: 2026-05-31T17:10:55+00:00

This is probably a long shot but I asked a question about converting one

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This is probably a long shot but I asked a question about converting one of the statistics toolbox codes earlyier into C# realising that it was just a huge and lengthy process and there was not much in the way to automate it (really what I wanted as the references I provided explained why it was so hard to do by hand, as the comments I got where: why dont you try convert it and ask questions on where you are stuck, which obviously my question wasnt understood!).

The reason I was looking to do this is because of the long processing time required by matlab to complete what im working on (k-means and bayes classifiers on large data sets). So I thought well hey why not just convert the code into C# and try my hand at multithreading and Multiprocessing, this might provide a functional means to decrease the processing time. But obviously its extremely hard to convert all of matlabs functions to C# by hand to accommandate this.

So my question is if I import matlabs files into C# is it possible to have them used/ran in multithreading and multiprocessing fashion or will the imported files just run like they do in matlab?

The reason (I think) it runs slow in matlab is that the functions or some of them in the statistics toolbox only benefit from multithreading specifically:

MATHEMATICS
Arrays and matrices
• Basic information: ISFINITE, ISINF, ISNAN, MAX, MIN
• Operators: +, -, .*, ./, .\, .^, *, ^, \ (MLDIVIDE), / (MRDIVIDE)
• Array operations: PROD, SUM
• Array manipulation: BSXFUN, SORT


Linear algebra
• Matrix Analysis: DET, RCOND
• Linear Equations: CHOL, INV, LINSOLVE, LU, QR
• Eigenvalues and singular values: EIG, HESS, SCHUR, SVD, QZ

Elementary math
• Trigonometric: ACOS, ACOSD, ACOSH, ASIN, ASIND, ASINH, ATAN, ATAND, ATANH, COS, COSD, COSH,HYPOT, SIN, SIND, SINH, TAN, TAND, TANH
• Exponential: EXP, POW2, SQRT
• Complex: ABS
• Rounding and remainder: CEIL, FIX, FLOOR, MOD, REM, ROUND

Special Functions
• ERF, ERFC, ERFCINV, ERFCX, ERFINV, GAMMA, GAMMALN

DATA ANALYSIS
• CONV2, FILTER, FFT and IFFT of multiple columns or long vectors, FFTN, IFFTN

So im not to sure how or in what way I could potentially decrease the processing time, the kmeans and bayes classifier when processeing near tens of thousands of records really is just unbearable on its processing time (understandable).

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1 Answer

  1. Editorial Team

    This is not something you will be able to do easily. In fact I would say it is not possible.

    If you attempt it you have the following issues to deal with:

    • Find a (semi) automated way to convert math lab functionality into C#
      This does not exist to my knowledge.
    • Alter the resulting code to be multithreading enabled
      To make modify a mathematical algorithm to supported multiple threads is very difficult and sometimes even impossible due to the data structures used
    • Also keep in mind that some mathematical problems do not scale with the number of processors, so you might not even get the benefit you expected.
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