
{{alias}}( x, α, s, m )
    Evaluates the natural logarithm of the cumulative distribution function
    (CDF) for a Fréchet distribution with shape parameter `α`, scale parameter
    `s`, and location `m`.

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

    If provided `α <= 0` or `s <= 0`, the function returns `NaN`.

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

    α: number
        Shape parameter.

    s: number
        Scale parameter.

    m: number
        Location parameter.

    Returns
    -------
    out: number
        Evaluated logCDF.

    Examples
    --------
    > var y = {{alias}}( 10.0, 2.0, 3.0, 0.0 )
    ~-0.09
    > y = {{alias}}( -1.0, 2.0, 3.0, -3.0 )
    ~-2.25
    > y = {{alias}}( 2.5, 2.0, 1.0, 2.0 )
    -4.0
    > y = {{alias}}( NaN, 1.0, 1.0, 0.0 )
    NaN
    > y = {{alias}}( 0.0, NaN, 1.0, 0.0 )
    NaN
    > y = {{alias}}( 0.0, 1.0, NaN, 0.0 )
    NaN
    > y = {{alias}}( 0.0, 1.0, 1.0, NaN )
    NaN
    > y = {{alias}}( 0.0, -1.0, 1.0, 0.0 )
    NaN
    > y = {{alias}}( 0.0, 1.0, -1.0, 0.0 )
    NaN


{{alias}}.factory( α, s, m )
    Returns a function for evaluating the natural logarithm of the cumulative
    distribution function (CDF) of a Fréchet distribution with shape parameter
    `α`, scale parameter `s`, and location `m`.

    Parameters
    ----------
    α: number
        Shape parameter.

    s: number
        Scale parameter.

    m: number
        Location parameter.

    Returns
    -------
    logcdf: Function
        Logarithm of cumulative distribution function (CDF).

    Examples
    --------
    > var mylogcdf = {{alias}}.factory( 3.0, 3.0, 5.0 );
    > var y = mylogcdf( 10.0 )
    ~-0.216
    > y = mylogcdf( 7.0 )
    ~-3.375

    See Also
    --------

