标题: 用哪个相关系数？ [打印本页] 作者: shiyiming 时间: 2006-6-19 17:29 标题: 用哪个相关系数？ 如果两变量是定距变量，但是样本不服从正态分布，做相关性分析的时候用pearson还是 spearman相关系数呢？作者: shiyiming 时间: 2006-6-20 23:28 标题: RE: Pearson is for product-moment correlation. which is a parametric measure of association for two variables. It measures both the strength and direction of a linear relationship.
Spearman is for rank-order correlation, which a nonparametric measure of association based on the ranks of the data values.