I think you can use the -st_matrix- command in mata to send D3 to Stata, and then use -outsheet- to save D3 as a text or csv file or whatever the options are in outhseet.
So you'll have a few lines looking like this:
******* start here
st_matrix("D3",D3)
end
***** the "end" above is to get out of mata. from now on you're back into Stata
svmat double D3, name(D3)
outsheet D3 using "C:/test1.csv", comma
************ end here
I hope this helps and/or works.
Cheers,
Rodrigo
Rodrigo Martell
<http://www.frontier-economics.com>
Frontier Economics Pty. Ltd.
395 Collins Street
Melbourne VIC 3000
Australia
www.frontier-economics.com
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-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Bamidele Tayo
Sent: Tuesday, 12 December 2006 10:57 AM
To: [email protected]
Subject: st: How to convert matrix to variables in MATA
Dear Stata Users,
I am using Stata 9.2 and I would appreciate if someone can help me
with how to convert matrix to variables in MATA. What I want to do is
(i) read some values from stata file into column vector "D1", (ii)
convert column vector "D1" to a symmetric matrix "D2", (iii) convert
matrix "D2" to column vector "D3", and (iv) save "D3" to either
existing/new stata file or ASCII file. Steps (i) - (iii) work well,
but I can get to accomplish step (iv) with any of the commands in the
MATA manual. Perhaps, what I want is how to perform the same task
that "savmat" command does in the old matrix language of Stata. Below
are the codes I am using.
log using "c:\test1.log", replace
use "C:\test1.dta", clear
mata
D1 = st_data((1,6),"wt")
D2 =invvech(D1)
D3 =vec(D2)
D1
D2
D3
/* want to save D3 to an ASCII or Stata file here */
end
log close
Thanks in advance for your help.
Bamidele Tayo
____________________________________________________________________________________
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