tangle_score

tangles.analysis.tangle_score(tangle_matrix: ndarray, feat_ids: ndarray, feat_sys, normalize_rows=False, normalize_cols=False) → ndarray

Calculates the tangle scores, a measure of how much a point is ‘contained’ within a tangle.

It is calculated by considering, for every point and every tangle, every feature of the tangle and then calculating

number of features which contain the point - number of feature which do not contain the point.

Parameters

tangle_matrixnp.ndarray

A (tangles x features)-matrix encoding whether a tangle contains a certain feature or its inverse. Contains 1 if the tangle contains the feature and otherwise 0.

feat_idsnp.ndarray

The feature ids corresponding to the columns of the tangle_matrix.

feat_sysFeatureSystem

A feature system.

Returns

np.ndarray

A (points x tangles)-matrix encoding the tangle score of each point in the dataset for each tangle.