earthkit.meteo.extreme.array.cpf
================================

.. py:function:: earthkit.meteo.extreme.array.cpf(clim, ens, sort_clim=True, sort_ens=True, epsilon=None, symmetric=False, from_zero=False)

   Compute Crossing Point Forecast (CPF)

   WARNING: this code is experimental, use at your own risk!

   :param clim: Per-point climatology
   :type clim: :class:`array-like (nclim`, :class:`npoints)`
   :param ens: Ensemble forecast
   :type ens: :class:`array-like (nens`, :class:`npoints)`
   :param sort_clim: If True, sort the climatology first
   :type sort_clim: :class:`bool`
   :param sort_ens: If True, sort the ensemble first
   :type sort_ens: :class:`bool`
   :param epsilon: If set, use this as a threshold for low-signal regions. Ignored if
                   `symmetric` is True
   :type epsilon: :class:`float` or :obj:`None`
   :param symmetric: If True, make CPF values below 0.5 use a symmetric computation (CPF of
                     opposite values)
   :type symmetric: :class:`bool`
   :param from_zero: If True, start looking for a crossing from the minimum, rather than the
                     median
   :type from_zero: :class:`bool`

   :returns: CPF values
   :rtype: :class:`array-like (npoints)`