On Jul 8, 2012, at 23:39 , ycyi121 wrote:
> Hi,
>
> I have great difficulty in simulation the a dataset based in a loading
> matrix [c(1,1,1,2,3,3,3,4,4,3,2,2,1,1), 7, 2) and an error covariance
matrix
> is 2*I. I have to simulate a dataset with 7 variables and 50 rows. I search
> a lot and did find some information on this, for example, using rmvnorm().
> But I could do it.
>
> Please help!
>
This looks like homework, and we don't do people's homework on this
list. One hint though: You have in your textbook a formula that connects your
loadings and errors to the 7x7 covariance matrix for observations. This is what
you need in order to use rmvnorm().
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