any_dominated

moocore.any_dominated(data, maximise=False, keep_weakly=False)

Test whether the input data contains any (weakly-)dominated point.

This function is equivalent to np.logical_not(moocore.is_nondominated(x)).any(), but faster.

See also

For details about parameters and the calculation, see is_nondominated().

Returns:

bool – Returns True if the input array contains at least one point that is weakly-dominated by another point in the array. With keep_weakly=True, the point must be dominated not just a duplicate.

Examples

>>> S = np.array([[1, 1], [0, 1], [1, 0], [1, 0]])
>>> moocore.is_nondominated(S)
array([False,  True,  True, False])
>>> moocore.any_dominated(S)
True
>>> moocore.any_dominated(moocore.filter_dominated(S))
False
>>> S = np.array([[0, 1], [1, 0], [1, 0]])
>>> moocore.is_nondominated(S, keep_weakly=True)
array([ True,  True,  True])
>>> moocore.any_dominated(S, keep_weakly=True)
False