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- Thu Jun 27, 2013 4:55 am
- Forum: Estimation
- Topic: NLS estimation problem
- Replies: 1
- Views: 2111
NLS estimation problem
Hi, I want to estimate the equation with NLS method: C_FUEL=C(1)*TC+((1-C(1))*28.6*C(2)-C(1)*38.9*C(3)-C(1)*40.9*C(4))*N The estimation out put gives me coef. but it does not have prob or t-statistic and it gives me the 'WARNING: Singular covariance - coefficients are not unique' C(2) and C(3) and C...