HgCDF

Hypergeometric CDF

def hypergeom_cdf(N, A, n, t, min_value=None):
    
    '''
    Cumulative Density Funtion for Hypergeometric Distribution
    :param N: population size
    :param A: total number of desired items in N
    :param n: number of draws made from N
    :param t: number of desired items in our draw of n items up to t
    :returns: CDF computed up to t
    '''
    if min_value:
        return np.sum([hypergeom_pmf(N, A, n, x) for x in range(min_value, t+1)])
    
    return np.sum([hypergeom_pmf(N, A, n, x) for x in range(t+1)])