| T O P I C R E V I E W |
| Brucettl |
Posted - 05/09/2015 : 05:16:40 AM
Origin Ver. and Service Release (Select Help-->About Origin): 9
Operating System: win 7
Hello everyone here! I am seeking for help!
I used the following equations to fit my data, the fitting curve was perfect,but the result was not stable, even with differences of many magnitudes.
y=(E*x^2+F)/(x^4+G*x^2+H);
E=2*A*T+A^2;
F=2^A*T^3+A*T^2;
G=E+2*T^2;
H=T^4+F;
Is there any problem here?
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| 1 L A T E S T R E P L I E S (Newest First) |
| SeanMao |
Posted - 05/11/2015 : 02:25:55 AM
Hi,
I am afraid it is hard to judge what is actually going on with your fitting based on your description.
To diagnose your problem in our side, you may send your opj files along with the detailed descriptions, such as, what are the independent variables, what are the optimal initial parameter values, to tech@originlab.com.
Regards!
Sean
OriginLab Tech. Service |
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