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 Apparent fit in case of nonlinear curve fitting		  New Topic  Reply to Topic
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Rafael89

Armenia
5 Posts
Posted - 05/14/2014 :  04:40:11 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. 8.6
Operating System:Mac OS x

Dear community,

could you pleas tell me how I can find "Apparent fit" option in case of Nonlinear Curve fitting? I am trying to fit Log linear plot with nonlinear function.

Regards,
Rafael

Shirley_GZ

China
Posts
Posted - 05/14/2014 :  05:33:20 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

The Apparent Fit only be supported whenyou do Polynomial Fit and Linear fit.


Originlab Technical Service Team
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Rafael89

Armenia
5 Posts
Posted - 05/14/2014 :  06:50:22 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thanks for reply, so if I am fitting Log Linear plot by a function which is not polynomial then what will be the curve on my graph?
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lkb0221

China
497 Posts
Posted - 05/19/2014 :  10:33:00 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

Then you will need to modify your fitting function to force it to be a "apparent fit".
For example, if your plot is log(X)-linear(Y), then you need to replace all the X in your formula by log(X).
Hope it's not a complicated one...

Zheng
originLab
Edited by - lkb0221 on 05/19/2014 10:42:19 AM
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Rafael89

Armenia
5 Posts
Posted - 05/21/2014 :  04:20:51 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thanks for suggestion Zheng.
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