| T O P I C R E V I E W |
| nbulcourt |
Posted - 05/21/2002 : 3:18:35 PM
Hello,
I would like to know how origin try to optimize the different parameters during a fitting routine. I mean if I have three parameters like P1, P2 and P3.
Origin tries to optimize P1 first and P2 and then P3. No ?
If this is right, it means that the order of the parameters in my routine is important. No ?
Thanks for your answer. |
| 4 L A T E S T R E P L I E S (Newest First) |
| nbulcourt |
Posted - 05/22/2002 : 6:11:46 PM
Thank you for your answer. |
| nbulcourt |
Posted - 05/22/2002 : 6:11:27 PM
Thank you for your answer. |
| nbulcourt |
Posted - 05/22/2002 : 6:11:10 PM
Thank you for your answer. |
| easwar |
Posted - 05/22/2002 : 11:12:14 AM
Hello,
Origin uses the Levenberg-Marquardt minimization algorithm in NLSF (this is the default method - we also offer Simplex), and this algorithm is not sensitive to the order of the parameters. The minimization involves all parameters - it does not minimize with respect to P1, then P2, then P3 etc.
Easwar
OriginLab.
ML |
