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ssoubatch

Germany
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Posted - 03/31/2008 :  10:26:57 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Version (Select Help-->About Origin): 7.5 SR6
Operating System: windowsXP

I would like to program a fitting procedure. Four arrays of data are given A[i], B[i], C[i], and Dexp[i]. The fitted function has the following form: Dtheor[i]=X1*A[i]+sqrt(B[i])*cos(X2*C[i]), where X1 and X2 are fitting parameters. X1 is constrained between X1a and X1b, and X2 is constrained between X2a and X2b

The procedure should fit Dtheor to Dexp returning X1 and X2 with errors.

Unfortunately I am really new in Origin C and has no experience working with NLSF environment. So could you please help me or give a link to a proper description of it.

Thanks a lot
Sergey

Edited by - ssoubatch on 03/31/2008 10:33:49 AM

Edited by - ssoubatch on 03/31/2008 10:39:15 AM

Edited by - ssoubatch on 03/31/2008 10:56:59 AM

Fay_Guo

China
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Posted - 04/01/2008 :  03:14:54 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Sergey,

We have files for describing NLSF in Origin help file. So could you open this page by menu item:

Help --> Programming --> LabTalk Language Reference --> Object Reference --> Alphabetical Listing of Objects --> NLSF

Hope it can help you. If you have any questions, please feel free to contact with us.

Thanks
Fay
Originlab Technical Service
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