<?php

/**
 * Calculates any one parameter of the negative binomial distribution given values for the others.
 *
 * @phpstub
 *
 * @param float $par1
 * @param float $par2
 * @param float $par3
 * @param int $which
 *
 * @return float 
 */
function stats_cdf_negative_binomial($par1, $par2, $par3, $which)
{
}