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 Insufficient Reset of NLSF when Function changes		  New Topic  Reply to Topic
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khuber

Germany
Posts
Posted - 12/28/2009 :  07:07:10 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release (Select Help-->About Origin): 8SR6
Operating System: Windows XP

Function A has a fit parameter: double w
Function B has a constant: const w=... in the 'after fitting script'

Fitting (fitter dialog) A first and then B (same data; NLFit ->
Function Selection -> Function B) I get:
W:already declared as double, cannot redeclare in the same scope!

Function B first then A:
w:cannot set value to a const!

NLSF keeps previous declarations across the scripts?

Thank you for an answer!
Kurt Huber

minimax

348 Posts
Posted - 12/29/2009 :  12:31:46 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Kurt,

The parameters of a function will be created to Origin's workspace once a fit is done. When multiple fits are done, the variables will update with the last one.

You can run command "list a" to see those variables.

So I suggest you use another variable name instead now.


Max
OriginLab Technical Support
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minimax

348 Posts
Posted - 12/30/2009 :  8:45:01 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
We will look further how to change this behavior so that conflict can disappear.

Max
OriginLab Technical Support
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Laurie

USA
404 Posts
Posted - 03/25/2010 :  6:39:30 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thank you again for bringing this issue to our attention. We have addressed it in Origin 8.1 SR2. The fitting parameters are no longer global variables. They are local to the NLFit. If you wish to try it out, you can download the demo:

http://www.originlab.com/index.aspx?s=12&lm=62

OriginLab Technical Support
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