Levenberg-Marquardt algorithm

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  • szewanng
    New Member
    • Jun 2010
    • 1

    Levenberg-Marquardt algorithm

    Hi

    I tried to use the alglib Levenberg-Marquardt algorithm - Nonlinear least squares fitting: Hessian-based or Hessian-free and it works well.

    http://www.alglib.net/interpolation/leastsquares.ph p#header1

    I need to solve a equation where it gives the best output value C which makes the slope close to 1. It does works however i need to put a constraint to restrict the C value ratio 1 > value > 0 . And i don't know where i can put this constraint in the code. Please help!!!

    Thanks in advance
    Nancy
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