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Re: st: Keeping values in upper triangle of matrix


From   brendan.halpin@ul.ie (Brendan Halpin)
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Keeping values in upper triangle of matrix
Date   Wed, 07 Dec 2011 09:35:39 +0000

Given Stata matrices x1 and x2, something like this will map the upper
triangle into variables. 

mata: 
v1=vech(st_matrix("x1"))
v2=vech(st_matrix("x2"))
st_addobs(length(v1))
st_addvar("double","v1")
st_addvar("double","v2")
st_view(V=.,.,.)
V[.,.]= v1, v2
end

Brendan
-- 
Brendan Halpin,   Department of Sociology,   University of Limerick,   Ireland
Tel: w +353-61-213147  f +353-61-202569  h +353-61-338562;  Room F1-009 x 3147
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http://teaching.sociology.ul.ie/bhalpin/wordpress         twitter:@ULSociology
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