Correspondence Analysis Based On Spearman's Rho
Classic correspondence analysis is a statistical method that gives a score to every value of two nominal variables. In this way the Pearson correlation coefficient between them is maximized.
There exists an equivalent of this method, called grade correspondence analysis, which maximizes Spearman's rho or Kendall's tau.
Read more about this topic: Spearman's Rank Correlation Coefficient
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