slophep.Predictions.SamplingTools

slophep.Predictions.SamplingTools.bifurcated_gaussian_sampler(mean: list[float], errlo: list[float], errhi: list[float], correlation: ndarray, rng: Generator, cutoff: int = -1) → list[float]

Generate a random sample from bifurcated gaussian using rejection method. For asymmetric errors.

Parameters:

• mean (list[float]) – Nominal/mean values for the parameters

• errlo (list[float]) – Lower error

• errhi (list[float]) – Upper error

• correlation (np.ndarray) – Correlation matrix

• rng (np.random.Generator) – Numpy generator object

• cutoff (int, optional) – Number of attempts to cutoff at, by default -1. Negative means no cutoff.

Returns:

Fluctuated parameters

Return type:

list[float]

Raises:

Exception – If cutoff is reached, raises exception and stops