Spearman's rank-order coefficient /ˈspɪəmənz/

• 1. 

  N a statistic measuring the extent to which two sets of discrete data place the distinct items in the same order, given by r S = 1 – 6Σd²/n(n² – 1), where Σd² is the sum of the squares of the differences of ranks between the two orderings and n is the number of items in each 对安排两套不相关资料以相同顺序放置的数据测量 (Also called Spearman's rank-order correlation coefficient)