| T O P I C R E V I E W |
| Jing@email.sc.edu |
Posted - 10/26/2013 : 05:23:45 AM
Hi, my origin version is 8.0. I want to fit a curve using a new function that I edited. However every time when I try to do the curve fitting, the new function cannot be used. I don't know why.
Hao |
| 1 L A T E S T R E P L I E S (Newest First) |
| snowli |
Posted - 10/26/2013 : 11:51:04 AM
Hello Hao,
When open Nonlinear Curve Fit dialog to fit the data, did you set Parameter initialization values?
Unless some parameter initialization code is defined in user-defined fitting function, you have to set the parameter initial values when doing the fit.
Maybe you can look at this video
http://www.originlab.com/Index.aspx?go=Support/VideoTutorials&pid=1172
About 2:45 shows how to set initial values on Parameters tab before doing the fit.
If it still doesn't work, maybe you can email your data and fdf file to tech@originlab.com and mention this post?
Sincerely, Snow
OriginLab Corp. |
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