These are two-sample tests for categorical data utilizing similarity information among the categories. They are useful when there is underlying structure on the categories.
Hao Chen and Nancy R. Zhang
Maintainer: Hao Chen (firstname.lastname@example.org)
Chen, H. and Zhang, N.R. (2013) Graph-based tests for two-sample comparisons of categorical data. Statistica Sinica, 23, 1479-1503.