| choose | combinations (gtools) | factorial |
| permutations (gtools) |
| dmvnorm (mvtnorm) | dmvt (mvtnorm) | rbeta |
| rbinom | rchisq | rexp |
| rf | rgamma | rgeom |
| rmultinom | rnorm | rpois |
| rt | rwilcox |
Prefixes for these probability functions
| d [density] | p [cdf] | q [quantile] |
| r [random generation] |
| ecdf | quantile | sample |