On characterization of two-sample U-statistics
A verifiable condition for a symmetric statistic to be a two-sample U-statistic is given. As an illustration, we characterize which linear rank statistics with two-sample regression constants are U-statistics. We also show that invariance under jackknifing characterizes a two-sample U-statistic.
Volume (Year): 58 (2002)
Issue (Month): 1 (May)
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