qiskit.result.Result¶
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class
Result(backend_name, backend_version, qobj_id, job_id, success, results, date=None, status=None, header=None, **kwargs)[소스]¶ Model for Results.
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backend_name¶ backend name.
- Type
str
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backend_version¶ backend version, in the form X.Y.Z.
- Type
str
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qobj_id¶ user-generated Qobj id.
- Type
str
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job_id¶ unique execution id from the backend.
- Type
str
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success¶ True if complete input qobj executed correctly. (Implies each experiment success)
- Type
bool
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results¶ corresponding results for array of experiments of the input qobj
- Type
list[ExperimentResult]
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__init__(backend_name, backend_version, qobj_id, job_id, success, results, date=None, status=None, header=None, **kwargs)[소스]¶ Initialize self. See help(type(self)) for accurate signature.
Methods
__init__(backend_name, backend_version, …)Initialize self.
data([experiment])Get the raw data for an experiment.
from_dict(data)Create a new ExperimentResultData object from a dictionary.
get_counts([experiment])Get the histogram data of an experiment.
get_memory([experiment])Get the sequence of memory states (readouts) for each shot The data from the experiment is a list of format [‘00000’, ‘01000’, ‘10100’, ‘10100’, ‘11101’, ‘11100’, ‘00101’, …, ‘01010’]
get_statevector([experiment, decimals])Get the final statevector of an experiment.
get_unitary([experiment, decimals])Get the final unitary of an experiment.
to_dict()Return a dictionary format representation of the Result
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data(experiment=None)[소스]¶ Get the raw data for an experiment.
Note this data will be a single classical and quantum register and in a format required by the results schema. We recommend that most users use the get_xxx method, and the data will be post-processed for the data type.
- 매개변수
experiment (str or QuantumCircuit or Schedule or int or None) – the index of the experiment. Several types are accepted for convenience:: * str: the name of the experiment. * QuantumCircuit: the name of the circuit instance will be used. * Schedule: the name of the schedule instance will be used. * int: the position of the experiment. * None: if there is only one experiment, returns it.
- 반환값
A dictionary of results data for an experiment. The data depends on the backend it ran on and the settings of meas_level, meas_return and memory.
QASM backends return a dictionary of dictionary with the key ‘counts’ and with the counts, with the second dictionary keys containing a string in hex format (
0x123) and values equal to the number of times this outcome was measured.Statevector backends return a dictionary with key ‘statevector’ and values being a list[list[complex components]] list of 2^num_qubits complex amplitudes. Where each complex number is represented as a 2 entry list for each component. For example, a list of [0.5+1j, 0-1j] would be represented as [[0.5, 1], [0, -1]].
Unitary backends return a dictionary with key ‘unitary’ and values being a list[list[list[complex components]]] list of 2^num_qubits x 2^num_qubits complex amplitudes in a two entry list for each component. For example if the amplitude is [[0.5+0j, 0-1j], …] the value returned will be [[[0.5, 0], [0, -1]], …].
The simulator backends also have an optional key ‘snapshots’ which returns a dict of snapshots specified by the simulator backend. The value is of the form dict[slot: dict[str: array]] where the keys are the requested snapshot slots, and the values are a dictionary of the snapshots.
- 반환 형식
dict
- 예외
QiskitError – if data for the experiment could not be retrieved.
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get_counts(experiment=None)[소스]¶ Get the histogram data of an experiment.
- 매개변수
experiment (str or QuantumCircuit or Schedule or int or None) – the index of the experiment, as specified by
get_data().- 반환값
- int] or list[dict[str:int]]: a dictionary or a list of
dictionaries. A dictionary has the counts for each qubit with the keys containing a string in binary format and separated according to the registers in circuit (e.g.
0100 1110). The string is little-endian (cr[0] on the right hand side).
- 반환 형식
dict[str
- 예외
QiskitError – if there are no counts for the experiment.
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get_memory(experiment=None)[소스]¶ Get the sequence of memory states (readouts) for each shot The data from the experiment is a list of format [‘00000’, ‘01000’, ‘10100’, ‘10100’, ‘11101’, ‘11100’, ‘00101’, …, ‘01010’]
- 매개변수
experiment (str or QuantumCircuit or Schedule or int or None) – the index of the experiment, as specified by
data().- 반환값
- Either the list of each outcome, formatted according to
registers in circuit or a complex numpy np.darray with shape:
meas_level
meas_return
shape
0
single
np.ndarray[shots, memory_slots, memory_slot_size]
0
avg
np.ndarray[memory_slots, memory_slot_size]
1
single
np.ndarray[shots, memory_slots]
1
avg
np.ndarray[memory_slots]
2
memory=True
list
- 반환 형식
List[str] or np.ndarray
- 예외
QiskitError – if there is no memory data for the circuit.
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get_statevector(experiment=None, decimals=None)[소스]¶ Get the final statevector of an experiment.
- 매개변수
experiment (str or QuantumCircuit or Schedule or int or None) – the index of the experiment, as specified by
data().decimals (int) – the number of decimals in the statevector. If None, does not round.
- 반환값
list of 2^num_qubits complex amplitudes.
- 반환 형식
list[complex]
- 예외
QiskitError – if there is no statevector for the experiment.
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get_unitary(experiment=None, decimals=None)[소스]¶ Get the final unitary of an experiment.
- 매개변수
experiment (str or QuantumCircuit or Schedule or int or None) – the index of the experiment, as specified by
data().decimals (int) – the number of decimals in the unitary. If None, does not round.
- 반환값
- list of 2^num_qubits x 2^num_qubits complex
amplitudes.
- 반환 형식
list[list[complex]]
- 예외
QiskitError – if there is no unitary for the experiment.
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