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kwallis2结果解读, RankMeans difference、Critical value 有什么含义
Ho:xyz(culturegroup==1) = xyz(culturegroup==3)
RankMeans difference =    289.17 Critical value =    175.82
Prob = 0.000007 (S)
Ho:xyz(culturegroup==1) = xyz(culturegroup==4)
RankMeans difference =    346.19 Critical value =    367.81
Prob = 0.006511 (NS)
括号里S、NS有什么含义?