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st: matrix question


From   moleps islon <moleps2@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: matrix question
Date   Sat, 8 Aug 2009 16:47:13 +0200

I'm all new to the world of matrices and cannot figure out how to use
them properly. What I'm trying to do is to loop through a bunch of
variables, tabulating them using estpost tab and save certain cells
([1,1..2] & [2,2]) into a new vector and append this vector to my
result matrix.

e.g. after the estpost tab command I've got two vectors (copied from
e(pct) and e(cumpct)) A(1,2,3,4) & B(2,4,6,7). What I need now is to
create a new vector containing A[1,1..2] & B[1,4] and append it to my
matrix J.
In the end matrix J should have one vector for each of the variables
and be displayed...

I'm sure this is easy, but I'm new to this and cannot figure out the
notation used in the manuals.

Reg,
M
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