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https://www.cnq.net/lianghuatouzi/1637.html Spearman's rank correlation coefficient (斯皮尔曼秩相关系数) - 宽客网 Jun 15, 2014 - Spearman's rank correlation coefficientFrom Wikipedia, the free encyclopediaJump to: navigation, searchIn statistics, Spearman's rank correlation coefficient... rank correlation coefficientspearman