Σύγκριση μεθόδων

	Nonlinear OLS	Παλινδρόμηση Ελαχίστων Τετραγώνων (OLS)
Πεδίο	Οικονομετρία	Οικονομετρία
Οικογένεια	Regression model	Regression model
Έτος προέλευσης	1974–1987	2019
Δημιουργός	Gallant (1987); Wooldridge (2010) for econometric treatment	Wooldridge (textbook treatment); classical least squares
Τύπος	Nonlinear regression estimator	Linear regression
Θεμελιώδης πηγή	Gallant, A. R. (1987). Nonlinear Statistical Models. John Wiley & Sons. ISBN: 978-0471802600	Wooldridge, J. M. (2019). Introductory Econometrics: A Modern Approach (7th ed.). Cengage Learning. ISBN: 978-1337558860
Εναλλακτικές ονομασίες	nonlinear least squares, NLS, NLLS, nonlinear regression	ordinary least squares, classical linear regression, linear regression, en küçük kareler regresyonu
Συναφείς	5	5
Σύνοψη	Nonlinear Ordinary Least Squares (NLS) estimates regression models in which the conditional mean function is nonlinear in the parameters. Like standard OLS it minimises the sum of squared residuals, but because no closed-form solution exists the estimator is found by iterative numerical optimisation. Under standard regularity conditions NLS is consistent and asymptotically normal.	Ordinary Least Squares is the classical linear regression method that explains a continuous outcome as a linear combination of predictors. It estimates the coefficients by minimising the sum of squared residuals, and under the Gauss-Markov assumptions these estimates are the best linear unbiased estimator (BLUE).