[R] How to simulate correlated data

[Kristel Joossens]

So what you actually wnat is a multivariate normal distribution!
with mean c(20,40) and covariance matrix 
cbind(c(5,0.6*sqrt(5,10)),c(0.6*sqrt(5,10),10))
[Since Corr(x,y) = Cov(x,y)/sqrt(Var(x)*Var(y))


Look at the mvtnorm package, for function rmvnorm


Trying RSiteSearch("Multivariate normal distribution")
should also bring you to the package

Best regrads,
Kristel



Lisa Wang wrote:
> Hello there,
> 
> I would like to simulate X --Normal (20, 5)
>                          Y-- Normal (40, 10)
> 
> and the correlation between X and Y is 0.6. How do I do it in R?
> 
> Thank you very much
> 
> Lisa Wang Msc.
> Princess Margaret Hospital
> Toronto, Ca
> 
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-- 
__________________________________________
Kristel Joossens        Ph.D. Student
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E-mail:  Kristel.Joossens at econ.kuleuven.be
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