st: vec of upper triangle

Edwin wants to put the upper triangle of a (symmetric?) matrix into a vector:

. mat list Ed

symmetric Ed[3,3]
c1 c2 c3
r1 1
r2 2 4
r3 3 5 6

. mata: st_matrix("Edv",vech(st_matrix("Ed")))

. mat list Edv

Edv[6,1]
c1
r1 1
r2 2
r3 3
r4 4
r5 5
r6 6

Kit Baum, Boston College Economics
http://ideas.repec.org/e/pba1.html
An Introduction to Modern Econometrics Using Stata:
http://www.stata-press.com/books/imeus.html

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