sample_dirichlet
From igraph v1.0.1
by Gabor Csardi
Sample from a Dirichlet distribution
Sample finite-dimensional vectors to use as latent position vectors in random dot product graphs
Usage
sample_dirichlet(n, alpha)Arguments
- n
Integer scalar, the sample size.
- alpha
Numeric vector, the vector of \(\alpha\) parameter for the Dirichlet distribution.
Details
sample_dirichlet generates samples from the Dirichlet distribution
with given \(\alpha\) parameter. The sample is drawn from
length(alpha)-1-simplex.
Value
A dim (length of the alpha vector for
sample_dirichlet) times n matrix, whose columns are the sample
vectors.
See Also
Other latent position vector samplers: sample_sphere_surface;
sample_sphere_volume
Examples
# NOT RUN {
lpvs.dir <- sample_dirichlet(n=20, alpha=rep(1, 10))
RDP.graph.2 <- sample_dot_product(lpvs.dir)
colSums(lpvs.dir)
# }
Community examples
Looks like there are no examples yet.