st: Draw new variable with fixed correlation to an existing variable

[Rachel <academicgirl@gmail.com>]

Suppose I have an existing variable x1, which is distributed as a
standard normal.  I wish to create a new variable x2 (also standard
normal) such that corr(x1,x2)=0.5.  ?Is there a way to do this in
Stata?

Thanks,
Rachel
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