qiskit.ignis.mitigation.TensoredExpvalMeasMitigator.plot_assignment_matrix

TensoredExpvalMeasMitigator.plot_assignment_matrix(qubits=None, ax=None)

Matrix plot of the readout error assignment matrix.

Parameters

• qubits (list(int)) – Optional, qubits being measured for operator expval.

• ax (axes) – Optional. Axes object to add plot to.

Returns

the figure axes object.

Return type

plt.axes

Raises

ImportError – if matplotlib is not installed.