help about random generation of a Normal distribution ofseveral variables

library(MASS)
set.seed(22134)
Y <- mvrnorm(100, mu = c(0,1), Sigma = matrix(c(2,1,1,3),2,2))
colMeans(Y)
[1] 0.06461359 1.08436419
var(Y)
[,1]     [,2]
[1,] 1.683963 1.300363
[2,] 1.300363 3.280612

Bill Venables
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-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of Arnau Mir Torres
Sent: Sunday, 6 July 2008 2:14 AM
To: r-help at r-project.org
Subject: [R] help about random generation of a Normal distribution
ofseveral variables

Hello.

Somebody knows how can I generate a set of n random vectors  of a  
normal distribution of several variables?
For example, I want to generate n=100 random vectors of two dimensions  
for a normal with mean c(0,1)  and  variance matrix:   
matrix(c(2,1,1,3),2,2).

Thanks in advance,

Arnau.

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help about random generation of a Normal distribution ofseveral variables

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