[email protected]
>
> I have a 2*1 matrix and wish to produce another matrix
> containing simply the square root values of this matrix.
mat b = J(2,1,1)
forval i = 1/2 {
mat b[`i',1] = sqrt(a[`i',1])
}
What you put in b[,] initially is arbitrary as each element
is overwritten.
The general principle is exactly that explained in the FAQ referred to
yesterday:
How do I perform element-by-element operations on matrices?
http://www.stata.com/support/faqs/data/matrix.html
Nick
[email protected]
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