Per-row upper-triangle co-occurrence matrix

For each row in codes, computes the pairwise code products (upper-triangle) and optionally binarizes. Output has choose(n_codes, 2) columns.

Usage

row_connections(codes, binary = TRUE)

Arguments

codes

Numeric matrix (rows = observations, cols = codes)

binary

If TRUE, binarise non-zero co-occurrences (default TRUE)

Value

Numeric matrix (n_rows x choose_two(n_codes))