Peak Fitting Routines

[Brent Kirkwood]

I am looking for more than the peak fitting routines that I see built
into LabVIEW... Does anyone have or know where I can find routines for
doing a gaussian peak fit and/or a centroid curve fit?

Or do you have any idea where I can find a mathematical description of
these routines so that I can implement them myself?

Thanks in advance,

Brent
fever@yuck.net

[Greg_McKaskle2]

> I am looking for more than the peak fitting routines that I see built
> into LabVIEW... Does anyone have or know where I can find routines for
> doing a gaussian peak fit and/or a centroid curve fit?
>
> Or do you have any idea where I can find a mathematical description of
> these routines so that I can implement them myself?
>

There are two places you might look. The first is on the
NI web site. Under downloadable SW, they have some examples
that don't ship with the product. The second is on the
pica.army.mil ftp site. I believe the best way to locate
it is at http://vaneg1.ecs.umass.edu/Socratis/LabVIEW/

If you don't find it there, then venture out onto the
web ring. You will find lots of sites that have VIs
archived. The difficulty is in finding the right
one.

Greg McKaskle

[bubucis]

Just use Levenberg-Marquardt VI under curve fitting group. That one is
commonly used for fitting non-linear functions. I have used it for fitting
Lorentzian and it worked well.


Brent Kirkwood wrote in message
news:fmNL3.552$b84.94377@ptah.visi.com...
> I am looking for more than the peak fitting routines that I see built
> into LabVIEW... Does anyone have or know where I can find routines for
> doing a gaussian peak fit and/or a centroid curve fit?
>
> Or do you have any idea where I can find a mathematical description of
> these routines so that I can implement them myself?
>
> Thanks in advance,
>
> Brent
> fever@yuck.net