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jazgara@un1
Poland
6 Posts |
 Posted - 09/03/2002 : 07:13:00 AM
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Hi,
I have a quesition about user-defined fitting function. I need to use function with an integral, and I have problem with a variable of integration which is off course different than an independent variable (like t in Voigt function).I don't know how to define it. Now Origin give the comunicate: unknown parameter t.
Has anyone know of good solution of my problem?
Aga |
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rtoomey
USA
184 Posts |
Posted - 09/09/2002 : 4:59:17 PM
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If the following are true:
- You are trying to use our Fitting with Integrals Knowledge Base Tip.
- You have Origin 7.
- The Compile before use check box (also known as the Use Origin C check box) is checked. To see if it is, trying editing your function in the NLSF. The check box is located below the text box in which you define the function.
you should uncheck the check box mentioned above. However, if you have replaced the integrate command (used in the Fitting with Integrals example) with an Origin C equivalent, you should leave the check box checked. In addition to this, you must also make sure "t" is declared before the function. For instance, if "t" is an integer, declare it as follows:
int t;
If I have misunderstood your question or you have a question of your own, it might be easier to contact Technical Support. Please include some sample data and the Function Definition File (FDF)† as attachments to the e-mail so that we can take a look at what you have so far.
I hope this information proves helpful.
- rtoomey
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† The FDF file is the file that contains your fitting function and all of its settings. FDF files are stored in the \Origin\FitFunc directory. To locate your FDF, open Windows Explorer and navigate to this directory. Then, click on the Modified button to sort the files based on their modification dates. Your file should (in theory) be at or near the top of this list.
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fitting function with integral