Weighted Least Squares (WLS)
Weighted Least Squares ni dhana ya kurudi nyuma ya Ordinary Least Squares (OLS) ambayo huipa kila uchunguzi uzito unaohusiana kinyume na kosa lake la kupotoka, hivyo basi kupunguza athari za data zenye upotofu mkubwa na kuongeza athari za data sahihi. Imeanzishwa katika mfumo wake wa jumla wa kimatrikisi na Alexander Craig Aitken mwaka 1935, WLS ni suluhisho la kawaida wakati ambapo upotofu usio sawa (heteroscedasticity) upo na muundo wa kosa la upotofu unajulikana au unaweza kukadiriwa kwa uhakika.
Soma mbinu kamili
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Ramani ya mbinu
Jirani ya mbinu zinazohusiana — chagua nodi ili kuchunguza.
+5 zaidi
Vyanzo
- Aitken, A. C. (1935). IV.—On least squares and linear combination of observations. Proceedings of the Royal Society of Edinburgh, 55, 42–48. DOI: 10.1017/S0370164600014346 ↗
- Greene, W. H. (2012). Econometric Analysis (7th ed.). Pearson Education. ISBN: 978-0131395381
- Montgomery, D. C., Peck, E. A., & Vining, G. G. (2012). Introduction to Linear Regression Analysis (5th ed.). Wiley. ISBN: 978-0470542811
Jinsi ya kunukuu ukurasa huu
ScholarGate. (2026, June 3). Weighted Least Squares Regression. ScholarGate. https://scholargate.app/sw/statistics/weighted-least-squares
Mbinu ipi?
Weka mbinu hii kando ya jamaa zake wa karibu na uzisome bega kwa bega — maktaba huweka vitabu mezani; uamuzi ni wako.
- Mbinu ya Viwango Vidogo Vilivyopanuliwa (GLS)Takwimu↔ linganisha
- Ordinary Least Squares (OLS)Takwimu↔ linganisha
- Regression Imara (Robust Regression)Takwimu↔ linganisha
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