Global fit in a custom program

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Mon, 04/01/2013 - 11:25 pm

Hi,

I'm currently using a custom software for a specific microscopy data analysis need.
This software is used by many users and I have to implement some feature on it but in a "user friendly" window.

For the moment, people are fitting 4 data sets individually with 4 different functions but we know that some parameters are linked between the data sets. That's why the global fit package is the solution. I have tryed to use it with success but now, I have to implement it on my user interface, with less functionnalities.
I would like to know if someone could provide me an example of a simple IGOR code which use the global fit package.

Thanks a lot in advance.
Best regards.

Sébastien
I trust you have found the description of the DoNewGlobalFit() function in the Global Fit help. Unfortunately, the only example we have of how to use this function is the Global Fit code itself, which is rather complex. See the function NewGF_DoTheFitButtonProc(). The hardest part is constructing the matrix that describes the coefficient linkage.

I know other customers have written custom code using DoNewGlobalFit(). Hopefully one of them will see your post and give you some pointers. You might also post a question to the mailing list: http://www.igorexchange.com/support

John Weeks
WaveMetrics, Inc.
support@wavemetrics.com

April 2, 2013 at 09:07 am - Permalink

Hi Sebastien,
I really like GlobalFit, it's really powerful. However, I was finding it a bit of a bind to setup and use.
I therefore 'rolled' my own version of global fit that works really well.

In order to provide a much easier way of doing the setup I 'rolled' my own for the trivial cases I often have to deal with. It's not hard to do if you have some coding skills.

April 4, 2013 at 07:53 am - Permalink