
{{alias}}( x, r, v[, nranges] )
    Evaluates the cumulative distribution function (CDF) of a studentized range
    distribution.

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

    If provided `r < 2` or `v < 2`, the function returns `NaN`.

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

    r: number
        Sample size for range (same for each group).

    v: number
        Degrees of freedom.

    nranges: integer
        Number of groups whose maximum range is considered. Default: 1.

    Returns
    -------
    out: number
        Evaluated CDF.

    Examples
    --------
    > var y = {{alias}}( 0.5, 3.0, 2.0 )
    ~0.0644

    > y = {{alias}}( 12.1, 17.0, 2.0 )
    ~0.913


{{alias}}.factory( r, v[, nranges] )
    Returns a function for evaluating the cumulative distribution function (CDF)
    of a studentized range distribution.

    Parameters
    ----------
    r: number
        Number of samples.

    v: number
        Degrees of freedom.

    nranges: integer
        Number of groups whose maximum range is considered. Default: 1.

    Returns
    -------
    cdf: Function
        Cumulative distribution function (CDF).

    Examples
    --------
    > var mycdf = {{alias}}.factory( 3.0, 2.0 );
    > var y = mycdf( 3.0 )
    ~0.712
    > y = mycdf( 1.0 )
    ~0.216

    See Also
    --------

