cdfChii
==============================================

Purpose
----------------
Compute chi-squared abscissae values given probability and degrees of freedom.

Format
----------------
.. function:: c = cdfChii(p, df)

    :param p: probabilities.
    :type p: MxN matrix

    :param df: ExE conformable with *p*, degrees of freedom. :math:`df \gt 0`
    :type df: LxK matrix

    :return c: abscissae values for chi-squared distribution.

    :rtype c: matrix, max(M,L) by max(N,K) matrix

Examples
----------------
The following generates a 3x3 matrix of pseudo-random
numbers with a chi-squared distribution with expected
value of 4:

::

    // Set the rnd seed for repeatable random numbers
    rndseed 464578;

    /*
    ** Set the 'probabilities' input equal to a 3x3 matrix of
    ** uniform random numbers and the degrees of freedom' input
    ** to be a 3x3 matrix with each element equal to '4'
    */
    // Matrix of probabilities
    p = rndu(3, 3);

    // Degrees of freedom
    df = 4+zeros(3, 3);

    // Call cdfChii
    x = cdfChii(p, df);

After running the above code,

::

        0.934227 6.231914 4.227479
    x = 2.647158 1.203957 10.559593
        5.868060 1.368600 1.963283

.. seealso:: Functions :func:`gammaii`