Is it possible to do 3D fitting in Labview?

[balci]

Hi,
I have a function of the type z=f(x,y). Is it possible to fit z in terms of polynomial of the form z=a+b*x+c*x*y+d*x*y^2+.... using Labview. I have Labview 7.1.
Thanks,
Hamza

[Jermaine]

i guess it is not, coz i could not find any 3D fitting subVI in the Mathmatical->Fitting panel.

so far, LabVIEW is not professional for math analysis.

[altenbach]

Of course this is easily possible. Just use General LS fit. Have a look at my simple example in this thread:

 http://forums.ni.com/ni/board/message?board.id=170&message.id=129944

.It shows how to do it also using Levenberg marquardt, but General LS is probably preferred for such a simple problem. Let me know if you have questions.

Message Edited by altenbach on 01-12-2006 10:06 PM