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st: RE: sum of rows in stata matrix
From 
 
Kieran McCaul <[email protected]> 
To 
 
"[email protected]" <[email protected]> 
Subject 
 
st: RE: sum of rows in stata matrix 
Date 
 
Mon, 7 Oct 2013 12:18:53 +0800 
...
matrix A = (1,2,9\2,7,5\2,4,18)
matrix list A
* This sums across rows of A
matrix X1 = J(3,1,1)
matrix list X1
matrix B1 = A*X1
matrix list B1
*This sums down columns of A
matrix X2 = J(1,3,1)
matrix list X2
matrix B2 = X2*A
matrix list B2
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Shuaizhang Feng
Sent: Monday, 7 October 2013 10:45 AM
To: [email protected]
Subject: st: sum of rows in stata matrix
Dear all:
Suppose I have a matrix A in stata and I want to calculate sum of rows
for each column. What would the most simple way to do it? thanks.
SZ
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