calc_multinom_probs     Calculate multinomial probabilities
calc_prob_null          Calculate probability for given parameters
calc_prob_null_fast     Calculate probability for given parameters
calc_prob_null_gradient
                        Gradient of the multinomial likelihood sum
combinate               Arrange all combinations of rows of two
                        matrices
combinate2              Like combinate but adds on to previous call
itp_root                Find a univariate root of the function f
log_multinom_coef       Calculate log of multinomial coefficient
pvalue_psi0             Compute a p value for the test of psi <= psi0
                        and/or psi >= psi0
rdirich_dk_vects        Sample independently from Dirichlet
                        distributions for each of d_k vectors
runif_dk_vects          Sample uniformly and independently from d_k
                        simplices
sample_unit_simplexn    Sample n times from the unit simplex in d
                        dimensions
sspace_multinom         Enumerate the multinomial sample space
sspace_multinom_slow    Enumerate the sample space of a multinomial
xactonomial             Improved inference for a real-valued function
                        of multinomial parameters
