Simplex {rmutil}R Documentation

Simplex Distribution


These functions provide information about the simplex distribution with location parameter equal to m and shape equal to s: density, cumulative distribution, quantiles, and random generation.

The simplex distribution has density

f(y) = exp(-((y-m)/(m(1-m)))^2/(2y(1-y)s))/sqrt(2 pi s(y(1-y))^3)

where m is the location parameter of the distribution and s is the shape, and 0<y<1.


dsimplex(y, m, s, log=FALSE)
psimplex(q, m, s)
qsimplex(p, m, s)
rsimplex(n, m, s)


y vector of responses.
q vector of quantiles.
p vector of probabilities
n number of values to generate
m vector of location parameters.
s vector of shape parameters.
log if TRUE, log probabilities are supplied.


J.K. Lindsey

See Also

dbeta for the beta distribution and dtwosidedpower for the two-sided power distribution, other distributions for proportions between zero and one.


dsimplex(0.3, 0.5, 1)
psimplex(0.3, 0.5, 1)
qsimplex(0.1, 0.5, 1)
rsimplex(10, 0.5, 1)

[Package rmutil version 1.0 Index]