/bill.venables/
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Peng Jiang
Sent: Sunday, 6 July 2008 1:47 PM
To: Arnau Mir Torres
Cc: r-help@r-project.org
Subject: Re: [R] help about random generation of a Normal distribution
ofseveral variables
Hi
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.
Hi, Arnau,
mvrnorm() in MASS library is what you need.
? mvrnorm to see the detail but first you need to load the MASS
library, i.e,library(MASS)
regards/
On 2008-7-6, at 上午12:21, Arnau Mir wrote:
Hello.
Somebody knows how can I generate a set of n random vectors of a
normal
On Sat, 2008-07-05 at 18:21 +0200, Arnau Mir wrote:
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:
There is no need to load the MASS library, since the code for
mvrnorm therein is compact and self-contained:
mvrnorm - function (n=1, mu, Sigma, tol=1e-06, empirical=FALSE)
{
p - length(mu)
if(!all(dim(Sigma) == c(p, p)))
stop(incompatible arguments)
eS - eigen(Sigma, symmetric =
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,
Hi , Arnau
Did you ever check your mailbox? your question was answered last
night Beijing time. :)
Just read the following .
-
There is no need to load the MASS library, since the code for
mvrnorm therein is compact and self-contained:
mvrnorm - function (n=1, mu,
] [mailto:[EMAIL PROTECTED]
On Behalf Of Arnau Mir Torres
Sent: Sunday, 6 July 2008 2:14 AM
To: r-help@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
Venables
CSIRO Laboratories
AUSTRALIA
http://www.cmis.csiro.au/bill.venables/
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Peng Jiang
Sent: Sunday, 6 July 2008 1:47 PM
To: Arnau Mir Torres
Cc: r-help@r-project.org
Subject: Re: [R] help about random
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