topic Re : using template for constrained LM fit in LabVIEW

using template for constrained LM fit

nitad54448 — Thu, 08 Oct 2009 15:25:34 GMT

I am trying to do a constrained Levenberg Marquardt fit. How can I set up the function by using the template ? I attach here the regular LM fit I have, with some (poor) data.

thanks for help ( I read the help file but it is not too clear to me...)

regards

Re : using template for constrained LM fit

BenjaminR — Mon, 12 Oct 2009 09:56:08 GMT

Hello nitad54448,

Thanks for posting on National Instruments Forum.

You can find on the links above some information about the Levenberg-Marquardt functions in LabVIEW.

Introduction to Curve Fitting

What is the Difference between the two Levenberg-Marquadt VIs in LabVIEW

Re: Re : using template for constrained LM fit

nitad54448 — Mon, 12 Oct 2009 16:56:01 GMT

bonjour

merci pour la réponse .. le problème est comment définir la fonction dans template.. je vais y arriver un jour 🙂 !

cordialement

Re: Re : using template for constrained LM fit

Darin.K — Tue, 20 Oct 2009 21:09:28 GMT

See if this post and example helps you. It shows you how to set up the reference to the f(x,a) subVI and use it to call the LM function. No constraints but it should help you out.

http://forums.ni.com/ni/board/message?board.id=170&message.id=448715#M448715