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 Standard error and NLfitting		  New Topic  Reply to Topic
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Floki

Russia
2 Posts
Posted - 02/03/2018 :  10:49:28 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Hello,

I'm using NLcurve fit function to fit data points with standard error. Could somebody please explain me what type of weighting (Instrumental, statistical, etc) corresponds to standard error.

Thanks!

yuki_wu

896 Posts
Posted - 02/05/2018 :  12:52:44 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

Could you please have a look at this page, it should help:
https://www.originlab.com/doc/Origin-Help/FIt-with-Err-Weight

Regards,
Yuki
OriginLab
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Floki

Russia
2 Posts
Posted - 02/05/2018 :  12:15:25 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thank you for the reply,

This page is exactly what I'm asking about. There is a table on the link for different ways to account for error. However, it is not mentioned anywhere what option to choose if I have standard error column. I'm confused whether I should choose statistical, instrumental etc.?
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yuki_wu

896 Posts
Posted - 02/05/2018 :  9:41:01 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

You could use Instrumental weighting method.
We have a tutorial that you can refer to:
https://www.originlab.com/doc/Tutorials/Nonlinear-fitting-using-orthogonal-regression

Regards,
Yuki
OriginLab
Edited by - yuki_wu on 02/05/2018 9:41:13 PM
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