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Regression model

Robusna regresija W-procjeniteljem (Welsch / Tukey Bisquare)

W-procjenitelj je obitelj robusnih varijanti M-procjenitelja za linearnu regresiju koja koristi funkcije težine Tukey bisquare i Welsch, uvedene u radovima koji sežu do Beatona i Tukeyja (1974). Budući da njezine težine brzo padaju prema nuli kako rezidual raste, ona se jače odupire odstupanjima (outlierima) nego Huberov M-procjenitelj.

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Izvori

  1. Beaton, A. E. & Tukey, J. W. (1974). The Fitting of Power Series, Meaning Polynomials, Illustrated on Band-Spectroscopic Data. Technometrics, 16(2), 147-185. DOI: 10.1080/00401706.1974.10489171
  2. Maronna, R. A., Martin, R. D., Yohai, V. J. & Salibián-Barrera, M. (2019). Robust Statistics: Theory and Methods (with R) (2nd ed.). Wiley. ISBN: 978-1119214687

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ScholarGate. (2026, June 1). W-Estimator Robust Regression (Welsch / Tukey Bisquare). ScholarGate. https://scholargate.app/hr/statistics/w-estimator

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Citirana u

ScholarGateW-Estimator (W-Estimator Robust Regression (Welsch / Tukey Bisquare)). Preuzeto 2026-06-15 s https://scholargate.app/hr/statistics/w-estimator · Skup podataka: https://doi.org/10.5281/zenodo.20539026