A statistic array consisting of rows related to values of one feature and columns related to values of another feature with counts indicating the number of units with a given value of the first feature and a given value of the second feature, as well as two kinds of distributions: marginal distributions and conditional distributions. Such an assignment of feature values is called two-dimensional empirical feature distribution. Correlation table is formed for measureable features.

• Correlation ratio
• Table of contingency
• Table of independence
• Yule's coefficient of colligation

• Marginal distribution of the correlation table
• Conditional distribution of correlation table
• Table of contingency