Samir - One obvious solution is X = c(1,1,..,1)' where c is any constant.
Other solutions are also in the null space of A'A. You can use Stata
(-matrix symeigen-) to find the eigenvalues and eigenvectors of A'A. Then
any linear combination of eigenvectors correspinding to zero eigenvalues of
A'A will solve Ax = 0.
Al Feiveson
-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of samirkc
Sent: Friday, February 11, 2005 5:49 AM
To: statalist@hsphsun2.harvard.edu
Subject: st: solving equation AX=0
Dear statalisters,
How can I solve for matrix X in a matrix equations AX=0?, where A = a
non-symmetric matrix with row sum equals zero and X consists of unknowns
and 0 is zero matrix..
Best regards
Samir
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/