Residual sum of squares and multiple potential, diagnostics by a second order local approach

Xizhi Wu and Zhen Luo

Statistics & Probability Letters, 1993, vol. 16, issue 4, 289-296

Abstract: Inspired by Cook's (1986) assessment of local influence by studying the curvature of a surface associated with the overall discrepancy measure, this paper assesses the local influence through the curvature of the perturbation-formed surface of residual sum of squares (RSS) and multiple potential respectively. Two examples demonstrate the effectiveness of this method on identification of influential points.

Keywords: Curvature; first; and; second; order; local; approach; influential; cases; null; point; perturbation (search for similar items in EconPapers)
Date: 1993
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