prior.py 文件源码

def __init__(self, rv):
        """
        :param rv: rv_frozen Private member that holds an instance of
                      rv_frozen used to define the prior distribution.
                      It must be a 'frozen distribution', with all shape
                      parameters (i.e. a, b, loc, scale) set.

        For more info see `rv_continuous`_.
        For a list of functions suitable for use see
        `continuous-distributions`_.

        :Examples:

        .. code-block:: python

            # A half-bounded uniform prior on Agw, ensuring Agw >= 0.
            model.Agw.prior = Prior(UniformUnnormedRV(lower=0.))

            # A normalized uniform prior on Agw in [10^-18, 10^-12]
            model.Agw.prior = Prior(UniformBoundedRV(1.0e-18, 1.0e-12))

            # A Gaussian prior for gamma = 13/3 +/- 2/3
            mean, std = 13./3., 2./3.
            model.gamma.prior = Prior(scipy.stats.norm(loc=mean, scale=std))

            # A bounded Gaussian prior to ensure that eccentrity is in [0, 1]
            mean, std, low, up = 0.9, 0.1, 0.0, 1.0
            model.ecc.prior = Prior(GaussianBoundedRV(loc=mean, scale=std,
                                                      lower=low, upper=up))

        .. _rv_continuous: https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.rv_continuous.html#scipy.stats.rv_continuous
        .. _continuous-distributions: https://docs.scipy.org/doc/scipy/reference/stats.html#continuous-distributions
        .. # noqa E501
        """
        self._rv = rv
        pass