mixtools (version 1.0.4)

rnormmix: Simulate from Mixtures of Normals

Description

Simulate from a mixture of univariate normal distributions.

Usage

rnormmix(n, lambda=1, mu=0, sigma=1)

Arguments

n

Number of cases to simulate.

lambda

Vector of mixture probabilities, with length equal to $m$, the desired number of components (subpopulations). This is assumed to sum to 1; if not, it is normalized.

mu

Vector of means.

sigma

Vector of standard deviations.

Value

rnormmix returns an $n$-vector sampled from an $m$-component mixture of univariate normal distributions.

Details

This function simply calls rmvnormmix.

See Also

makemultdata, rmvnormmix

Examples

##Generate data from a 2-component mixture of normals.

set.seed(100)
n <- 500
lambda <- rep(1, 2)/2
mu <- c(0, 5)
sigma <- rep(1, 2)
mixnorm.data <- rnormmix(n, lambda, mu, sigma)

##A histogram of the simulated data.

hist(mixnorm.data)