add_features

FeatureSystem.add_features(new_features: ndarray, metadata=None) → tuple[ndarray, ndarray]

Add features to the feature system.

Parameters

new_featuresnp.ndarray

A matrix of shape (number of points, number of features) representing the features. A value of 1 represents the point being contained withing the feature and a value of -1 represents the point not being contained within the feature.

metadataarraylike, optional

An optional piece of metadata. Should be an arraylike of length (number of features).

Returns

tuple (np.ndarray, np.ndarray)

The ids of the added features in the feature system in its first entry and an np.ndarray in the second entry that is 1 if the new feature is contained in the feature system, or -1 if its inverse is contained in the feature system.