

   TThhee LLoogg NNoorrmmaall DDiissttrriibbuuttiioonn

        dlnorm(x, meanlog = 0, sdlog = 1)
        plnorm(q, meanlog = 0, sdlog = 1)
        qlnorm(p, meanlog = 0, sdlog = 1)
        rlnorm(n, meanlog = 0, sdlog = 1)

   DDeessccrriippttiioonn::

        These functions provide information about the log nor-
        mal distribution whose logarithm has mean equal to
        `meanlog' and standard deviation equal to `sdlog'.
        `dlnorm' gives the density, `plnorm' gives the distri-
        bution function `qlnorm' gives the quantile function
        and `rlnorm' generates random deviates.

        If `meanlog' or `sdlog' are not specified they assume
        the default values of `0' and `1' respectively.

        The log normal distribution has density

        f(x) = 1/(sqrt(2 pi) sigma x) e^-((log x - mu)^2 / (2 sigma^2))

        where mu and sigma are the mean and standard deviation
        of the logarithm.

   SSeeee AAllssoo::

        `dnorm', etc.

