Abstract
This paper proposes a new and distribution-free test called “Group Contingency” test (GC, for short) for testing two or several independent samples. Compared with traditional nonparametric tests, GC test tends to explore more information based on samples, and it’s location-, scale-, and shapesensitive. The authors conduct some simulation studies comparing GC test with Wilcoxon rank sum test (W), Kolmogorov-Smirnov test (KS) and Wald-Wolfowitz runs test (WW) for two sample case, and with Kruskal-Wallis (KW) for testing several samples. Simulation results reveal that GC test usually outperforms other methods.
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This research is supported by the National Natural Science Foundation of China under Grant No. 10731010 and Ph.D. Program Foundation of Ministry of Education of China under Grant No. 20090001110005.
This paper was recommended for publication by Editor Guohua ZOU.
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Zhang, H., Fang, X. & Ma, X. Group contingency test for two or several independent samples. J Syst Sci Complex 24, 1183–1192 (2011). https://doi.org/10.1007/s11424-011-9211-0
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DOI: https://doi.org/10.1007/s11424-011-9211-0