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st: RE: Matrix Calculations

From   "Nick Cox" <[email protected]>
To   <[email protected]>
Subject   st: RE: Matrix Calculations
Date   Thu, 1 Aug 2002 10:27:54 +0100

[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

How do I perform element-by-element operations on matrices?

[email protected]

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