On Methods of Handling Ties in the Wilcoxon Signed-Rank Test
Wilcoxon 符号秩检验中并列值处理方法的比较
Formulas are given for asymptotic efficiency of the Wilcoxon signed-rank test under several alternative ways of handling ties. Two methods of handling ties at zero, one suggested by Wilcoxon and the other by Pratt, are compared on the basis of their asymptotic efficiencies. Each method is shown to be better than the other in some situations. Two examples consider the discrete uniform distribution and the binomial distribution.