Module utils 

Functions

build_labels_count_distribution_matrix

Class counts for every pair of candidates: matrix[i][j] counts the instances in the right branch of both candidates[i] and candidates[j], and matrix[i][i] those in the right branch of candidates[i]. Every other leaf of a depth-2 tree follows by subtraction.

deduce_sibling_error

Class counts of a child’s sibling: the parent’s counts minus the child’s.

deduce_sibling_error_with_buffer

deduce_sibling_error writing into buffer.

find_valid_split_attributes

The features, among candidates (all of them when None) and other than previous, that leave at least min_sup instances on each side.