friedman检验

Friedman检验是一种多个相关样本齐一性的统计检验方法，也被称为弗里德曼双向秩方差分析。它的前提要求是顺序级数据、三个或更多组相关的小组，以及从搭配的数值中随机地抽取样本。该方法在1973年由弗里德曼提出。Friedman检验是非参数版的anova2，需要注意的是，它只注重其中一个因素对待检验数据的影响，而另一个因素则是用来区分区组用的。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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