How to use simulated data

General
1

Hello, i am fairly new to RStudio, so please excuse me if this question is rather basic. Im used to having named variables from a data set and dont use self simulated data much.

i generated a data set with

x = mvrnorm(n, mu, Sigma)
with 2 Variables in a correlation matrix for Sigma.

I now need to use only one of the simulated variables and i have no idea how to extract variable 1 or 2 separately.

Thank you very much!

2

Hello, welcome to the forum , I see its your first time posting. First advice for you is to declare the package your function is from. mvrnorm is a function in several CRAN packages. I would guess MASS is the most likely?

3

thank you, yes I used it with the MASS package

4

the result of this is a matrix with 2 columns and many rows ?
therefore to get var1 and var2 columns out you can use

var1 <- x[,1]
var2 <- x[,2]
5

Thanks alot! I knew it was probably simple but couldnt find it anywhere else.

6

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