Density function and random number generation for the dirichlet
distribution with shape parameter vector alpha
.
ddirichlet(x, alpha, log = FALSE)rdirichlet(n, alpha)
Matrix of quantiles. Each row corresponds to one probability vector.
Matrix of positive shape parameters. Each row corresponds to one probability vector.
Logical; If TRUE
, values are returned on the log scale.
Number of samples to draw from the distribution.
See vignette("brms_families")
for details on the
parameterization.