| T O P I C R E V I E W |
| saurabhd0911 |
Posted - 07/25/2016 : 08:12:02 AM
Origin Ver.8.0 and Service Release (Select Help-->About Origin):
Operating System:Windows 10
Dear Sir/Mam,
I am trying for a non linear curve fitting using a equation for which I got following values related to the fittings:
1. reduced chi-square value: 1.26E-4
2. Adj R2 value: 0.9801
I want to know whether the curve is acceptable. |
| 1 L A T E S T R E P L I E S (Newest First) |
| KenLefebvre |
Posted - 07/25/2016 : 09:31:15 AM
Hi Saurabh,
That depends entirely on the criteria which you are setting for the problem, however that being said, having a reduced chi-square value that small and an R2 value that close to 1 generally indicate the model was a good fit.
Again this depends how precise you'd like that fit to be, so I can only recommend reading some background literature if you are trying to establish the criteria for it yourself.
https://en.wikipedia.org/wiki/Coefficient_of_determination
https://en.wikipedia.org/wiki/Goodness_of_fit
Best regards,
Ken Lefebvre
Technical Service Engineer
OriginLab |
|
|
