| dnbconv | Calculates the PMF for the convolution of arbitrary negative binomial random variables. |
| nbconv_params | Calculates distribution parameters for the convolution of arbitrary negative binomial random variables. |
| nb_sum_exact | Implements Furman's exact PMF for the evaluation of the sum of arbitrary NB random variables. Called by other functions. Not intended to be run alone. |
| nb_sum_moments | Implements the method of moments approximation for the sum of arbitrary NB random variables. Called by other functions. Not intended to be run alone. |
| nb_sum_saddlepoint | Implements the saddlepoint approximation for the sum of arbitrary NB random variables. Called by other functions. Not intended to be run alone. |
| pnbconv | Calculates the CDF for the convolution of arbitrary negative binomial random variables. |
| qnbconv | Calculates the quantile function for the convolution of arbitrary negative binomial random variables. |
| rnbconv | Generates random samples from the convolution of arbitrary negative binomial random variables. |