iq_readout.metrics.get_probs_prep_meas

get_probs_prep_meas(classifier, shots_0, shots_1, shots_2=None)

Returns matrix whose element i,j corresponds to: p(measure state j | prepared state i)

Parameters:

classifier

A classifier from the iq_readout package

shots_0: np.ndarray(N, 2)

Data when preparaing state 0

shots_1: np.ndarray(N, 2)

Data when preparaing state 1

shots_2: np.ndarray(N, 2)

Data when preparaing state 2

Returns:

probs: np.ndarray(2,2) or np.ndarray(3,3)

The size of the array depends on the number of states that the classifier can discriminate.