This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)


SpearmanRankCorrelation[xlist, ylist]
gives Spearman's rank correlation coefficient for the real-valued vectors xlist and ylist.
  • Spearman's rank correlation coefficient is a measure of association based on the rank differences between two lists.
  • Spearman's is given by , where n=Length[xlist], ri is the rank difference between xi and yi, Tx is the correction term for ties in xlist, and Ty is the correction term for ties in ylist.
  • The arguments xlist and ylist can be any real-valued vectors of equal length.
Spearman's rank correlation for two vectors:
Click for copyable input