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st: re: matrix question
From
Christopher Baum <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: re: matrix question
Date
Sun, 5 Feb 2012 22:18:06 -0500
<>
Duh! The transformation matrix can readily be computed as a Kronecker product:
mata
bigmat = runiform(15,6)
eye = I(rows(bigmat) / 5)
bee = J(1, 5, 1/5)
transmat = eye # bee
reduced = transmat * bigmat
bigmat
reduced
end
Kit Baum | Boston College Economics & DIW Berlin | http://ideas.repec.org/e/pba1.html
An Introduction to Stata Programming | http://www.stata-press.com/books/isp.html
An Introduction to Modern Econometrics Using Stata | http://www.stata-press.com/books/imeus.html
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