46 lines
1.6 KiB
Plaintext
46 lines
1.6 KiB
Plaintext
---
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title: ExpvalMeasMitigatorFitter
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description: API reference for qiskit.ignis.mitigation.ExpvalMeasMitigatorFitter
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in_page_toc_min_heading_level: 1
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python_api_type: class
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python_api_name: qiskit.ignis.mitigation.ExpvalMeasMitigatorFitter
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---
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# ExpvalMeasMitigatorFitter
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<Class id="qiskit.ignis.mitigation.ExpvalMeasMitigatorFitter" isDedicatedPage={true} github="https://github.com/qiskit-community/qiskit-ignis/tree/stable/0.7/qiskit/ignis/mitigation/expval/fitter.py" signature="ExpvalMeasMitigatorFitter(result, metadata)" modifiers="class">
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Bases: `object`
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Expectation value measurement error mitigator calibration fitter.
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See [`qiskit.ignis.mitigation.expval_meas_mitigator_circuits()`](qiskit.ignis.mitigation.expval_meas_mitigator_circuits "qiskit.ignis.mitigation.expval_meas_mitigator_circuits") for additional documentation.
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Fit a measurement error mitigator object from experiment data.
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**Parameters**
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* **result** (`Result`) – Qiskit result object.
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* **metadata** (`List`\[`Dict`\[`str`, `any`]]) – mitigation generator metadata.
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## Methods
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### fit
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<Function id="qiskit.ignis.mitigation.ExpvalMeasMitigatorFitter.fit" signature="ExpvalMeasMitigatorFitter.fit(method=None, generators=None)">
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Fit and return the Mitigator object from the calibration data.
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**Return type**
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`Union`\[`CompleteExpvalMeasMitigator`, `TensoredExpvalMeasMitigator`, `CTMPExpvalMeasMitigator`]
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</Function>
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## Attributes
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### mitigator
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<Attribute id="qiskit.ignis.mitigation.ExpvalMeasMitigatorFitter.mitigator">
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Return the fitted mitigator object
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</Attribute>
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</Class>
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