
{{alias}}( k, λ )
    Returns the excess kurtosis of a Weibull distribution.

    If `k <= 0` or `λ <= 0`, the function returns `NaN`.

    If `k` or `λ` is `NaN`, the function returns `NaN`.

    Parameters
    ----------
    k: number
        Shape parameter.

    λ: number
        Scale parameter.

    Returns
    -------
    out: number
        Excess kurtosis.

    Examples
    --------
    > var v = {{alias}}( 1.0, 1.0 )
    6.0
    > v = {{alias}}( 4.0, 12.0 )
    ~-0.252
    > v = {{alias}}( 8.0, 2.0 )
    ~0.328

    See Also
    --------

