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Fitting to Non-analytic function.

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chandan11

India
7 Posts

Posted - 07/06/2016 : 05:37:13 AM

Origin Ver. and Service Release : OriginPro 2015 Sr1 b9.2.257
Operating System:Windows 10

I wanted to fit data with non-analytic function to get values for fitting parameters.

f(x)= a*g(x)+b*h(x)

I want to fit with function f(x) and get values for a and b. But I do not have analytic form of g(x) and h(x). But I have values for g(x) and h(x) at discrete values of x.

How can I define f(x) as fitting function in Origin to get fit on my data ?

Is there a way to do this in origin ?

Thanks

-Chandan

Edited by - chandan11 on 07/06/2016 08:44:57 AM

AmandaLu

439 Posts

Posted - 07/06/2016 : 06:28:52 AM

Hi Chandan,

We cannot fit this function if you don’t know analytic form of h(x) nor have values for h(x).

Thanks,
Amanda
OriginLab Technical Service

chandan11

India
7 Posts

Posted - 07/06/2016 : 06:39:09 AM

Hi Amanda,

My apology. Sorry for the wrong information I have values for g(x) and h(x).

Correction in previous post: "But I have values for g(x) and h(x) at discrete values of x."

And thanks for your prompt reply.

p.s. I have also corrected the first one.
-Chandan

Edited by - chandan11 on 07/06/2016 08:44:25 AM

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