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 Fixing parameters in nlsf fits		  New Topic  Reply to Topic
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Hildebrand

USA
3 Posts
Posted - 08/01/2002 :  11:18:02 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
I have created a user-defined function, but would like to be able to fix some of its parameters. I know how this is done in Origin, but would like to implement it in my LabTalk script. I am doing the following at the moment,

nlsf.init();
nlsf.func$=GaussBen; //GaussBen is user-defined.
y0=0;
xc=0;
w=0.0000003;
A=0.0000000625;

I am trying to fix y0 to zero, but will want to fix others in the future. Any help is much appreciated.

Ben

easwar

USA
1965 Posts
Posted - 08/01/2002 :  4:55:01 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hello,

You can use NLSF object properties to do this.
For example,
nlsf.v1=0;
nlsf.v2=0;
will set the first and second parameters as fixed.

You can find this and other object properties under the NLSF object in the LabTalk help file.

Easwar
OriginLab.
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