__init__.py 文件源码

def vonMisesPDF(self, alpha, mu=0.0):
        """ Probability density function of Von Mises pdf for input points

        @param List[float] alpha List-like or single value of input values
        @return List[float] List of probabilities for input points
        """

        num = np.exp(self.kappa * np.cos(alpha - mu))
        den = 2 * np.pi * iv(0, self.kappa)

        return num / den