dirichlet: Dirichlet Functions

In bertcarnell/dirichlet: Dirichlet and Generalized Dirichlet Distribution Functions

Description

pdf and random deviates of the Dirichlet distribution.

Usage

ddirichlet(x, alpha)

rdirichlet(n, alpha, allowZero = FALSE)

Arguments

x	vector of quantiles. For x < 0 || x > 1 or if the sum of x is not equal to 1, zero will be returned for the density
alpha	The Dirichlet parameters. alpha > 0 unless allowZero=TRUE
n	number of observations
allowZero	Indicator that zeros are allowed in the alpha vector and should be handled appropriately

Value

ddirichlet gives the density and rdirichlet generates random deviates.

Examples

rdirichlet(10, c(4,3,2))
ddirichlet(c(.2, .7, .1), c(4, 3, 2))
rdirichlet(5, c(4,3,0,2), allowZero=TRUE)
(ddirichlet(c(-0.2, 1.2), c(2,2)) == 0)

bertcarnell/dirichlet documentation built on May 12, 2021, 11:55 p.m.