
{{alias}}( x, k, λ )
    Evaluates the probability density function (PDF) for a Weibull distribution
    with shape parameter `k` and scale parameter `λ` at a value `x`.

    If provided `NaN` as any argument, the function returns `NaN`.

    If provided a nonpositive value for `λ` or `k`, the function returns `NaN`.

    Parameters
    ----------
    x: number
        Input value.

    k: number
        Shape parameter.

    λ: number
        Scale parameter.

    Returns
    -------
    out: number
        Evaluated PDF.

    Examples
    --------
    > var y = {{alias}}( 2.0, 1.0, 0.5 )
    ~0.037
    > y = {{alias}}( 0.1, 1.0, 1.0 )
    ~0.905
    > y = {{alias}}( -1.0, 4.0, 2.0 )
    0.0
    > y = {{alias}}( NaN, 0.6, 1.0 )
    NaN
    > y = {{alias}}( 0.0, NaN, 1.0 )
    NaN
    > y = {{alias}}( 0.0, 0.0, NaN )
    NaN
    > y = {{alias}}( 2.0, 0.0, -1.0 )
    NaN


{{alias}}.factory( k, λ )
    Returns a function for evaluating the probability density function (PDF) of
    a Weibull distribution with shape parameter `k` and scale parameter `λ`.

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

    λ: number
        Scale parameter.

    Returns
    -------
    pdf: Function
        Probability density function (PDF).

    Examples
    --------
    > var myPDF = {{alias}}.factory( 7.0, 6.0 );
    > var y = myPDF( 7.0 )
    ~0.155

    See Also
    --------

