lotka_volterra.py 文件源码

def rvs(cls, a, b, size=1, random_state=None):
        """Draw random variates.

        Parameters
        ----------
        a : float or array-like
        b : float or array-like
        size : int, optional
        random_state : RandomState, optional

        Returns
        -------
        np.array

        """
        u = ss.uniform.rvs(loc=a, scale=b-a, size=size, random_state=random_state)
        x = np.exp(u)
        return x