Implements the Block-wise Rank in Similarity Graph Edge-count
test (BRISE), a rank-based two-sample test designed for block-wise
missing data. The method constructs (pattern) pair-wise similarity graphs
and derives quadratic test statistics with asymptotic chi-square
distribution or permutation-based p-values. It provides both
vectorized and congregated versions for flexible inference.
The methodology is described in Zhang, Liang, Maile, and
Zhou (2025)