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有界影响秩回归：基于 Wilcoxon 得分的一步估计量AI 解读

The Krasker-Welsch (1982) approach to bounding influence is merged with rank regression. I propose a one-step estimator that is analogous to Bickel's (1975) one-step M estimator of Type 1 but uses weights that depend on the design vector and the residuals to reduce the influence of outliers. In fact, the standardized sensitivity of the estimator is made equal to a prechosen constant. It is based, however, on a second-derivative approximation to a dispersion surface that is…

基于单样本符号统计量的两样本检验之Bahadur效率AI 解读

SUMMARY This paper discusses the two-sample test of location based on the comparison of two distribution-free one-sample confidence intervals derived from sign statistics. This test procedure, first introduced by Hettmansperger (1984), rejects the null hypothesis of equal population medians when the two intervals are disjoint. He presents three different ways to select the two one-sample intervals and one choice leads to Mood's test. All solutions have the same Pitman…

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构造两样本序贯置信区间的一种简单方法AI 解读

On presente une methode generale simple pour construire un intervalle de confiance de longueur bornee pour la difference des medianes de population. On obtient un intervalle a deux echantillons