convert_lmfit_result¶

convert_lmfit_result(result, models, xdata, ydata, residuals)[source]¶

A helper function to convert LMFIT MinimizerResult into CurveFitResult.

CurveFitResult is a dataclass that can be serialized with the experiment JSON decoder. In addition, this class converts LMFIT Parameter objects into ufloats so that extra parameter computation in the analysis post-processing can perform accurate error propagation with parameter correlation.

Parameters:

result (MinimizerResult) – Output from LMFIT minimize.
models (List[Model]) – Model used for the fitting. Function description is extracted.
xdata (ndarray) – X values used for the fitting.
ydata (ndarray) – Y values used for the fitting.
residuals (ndarray) – The residuals of the ydata from the model.

Returns:

QiskitExperiments CurveFitResult object.

Return type:

CurveFitResult