def _get_norms(self, a, b):
_nb = _norm_cdf(b)
_na = _norm_cdf(a)
_sb = _norm_sf(b)
_sa = _norm_sf(a)
_delta = np.where(a > 0, _sa - _sb, _nb - _na)
return _na, _nb, _sa, _sb, _delta, np.log(_delta)
def _argcheck(self, a, b):
self.a = a
self.b = b
self._nb = _norm_cdf(b)
self._na = _norm_cdf(a)
self._sb = _norm_sf(b)
self._sa = _norm_sf(a)
self._delta = self._nb - self._na
idx = self.a > 0
self._delta[idx] = -(self._sb[idx] - self._sa[idx])
self._logdelta = np.log(self._delta)
return (a != b)
def _argcheck(self, a, b):
self.a = a
self.b = b
self._nb = _norm_cdf(b)
self._na = _norm_cdf(a)
self._sb = _norm_sf(b)
self._sa = _norm_sf(a)
self._delta = self._nb - self._na
idx = self.a > 0
self._delta[idx] = -(self._sb[idx] - self._sa[idx])
self._logdelta = np.log(self._delta)
return (a != b)