logdet_order

tangles.util.matrix_order.logdet_order(matrix: ndarray, feats: ndarray)

Order function defined by \(|f| = log( det( M_A )) + log( det( M_B ))\) where \(f\) is the bipartition indicator vector of the partition \((A,B)\).

Parameters

matrixnp.ndarray

Square matrix of shape (feats.shape[0], feats.shape[1]).

featsnp.ndarray

Matrix containing partition indicator vectors as columns.

Returns

np.ndarray

1-dimensional np.ndarray of length feats.shape[1] containing the orders.