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| javiers |
Posted - 11/18/2008 : 12:21:29 PM
Hi,
is it possible to use the gamma function for curve fitting?
if so, please give some tips I would be very grateful.
thanks guys.
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| 2 L A T E S T R E P L I E S (Newest First) |
| javiers |
Posted - 11/19/2008 : 10:17:48 AM
Hi emily thanks a lot for your help.
It is amazing it works and works great.
once again thanks a have a good day.
Javier |
| emily_yu |
Posted - 11/19/2008 : 03:58:04 AM
Hi, javiers
In Origin, there is no built-in gamma function in Curve Fitting, but Origin provides a general gamma function like this.
http://www.originlab.com/www/helponline/origin8/en/appendix_3_functions/script_accessible_functions/gamma_gamma_function.htm
With this funtion, we can create a user defined function by User Defined Function Organizer.
To know more details about User Defined Fitting Function, please see this webpage.
http://www.originlab.com/www/helponline/origin8/en/mergedProjects/Tutorial/Tutorial/User_Defined_Fitting_Function_using_OC.html
For example, we want to do Curve Fitting with this Function y=A*gamma(x), where A is the Parameter.
You can select Tools: Fitting Function Organizer to bring up a dialog box, and set like below.
When you finish create user defined fitting function, you can access it like other built in function.
Emily
OriginLab Technical Services |
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