def rlognormal ( mu , tau , size = None ) : return np . random . lognormal ( mu , np . sqrt ( 1. / tau ) , size )
generate standard normal random variablles python
Return random lognormal variates .
def rlognormal(mu, tau, size=None):
    """
    Return random lognormal variates.
    """

    return np.random.lognormal(mu, np.sqrt(1. / tau), size)