The comparison between polynomial regres
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Guo-Liang Tian
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Article
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1998
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Elsevier Science
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English
β 270 KB
In this paper, the relationship between X, the structure matrix in a polynomial reyression (PR) model, and Z, the structure matrix in an orthoyonalpolynomial reyression (OPR) model, is established. We show that C(X)>>,C(Z), where C(X) denotes the condition number of X, and OPR is superior to PR unde