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st: Copying matrices


From   Chris.Fergusson@sth.nhs.uk
To   statalist@hsphsun2.harvard.edu
Subject   st: Copying matrices
Date   Mon, 19 Aug 2002 14:27:14 +0100

> -----Original Message-----
> From:	Fergusson, Chris (WPH Cancer Registry) 
> Sent:	19 August 2002 14:25
> To:	'tech-support@stata.com'
> Subject:	Serial number:  1970515440
> 
> I have a program which produces a matrix (easr) size x*1 where x is even,
> no larger than 32 and variable depending on user input.  I need to take
> the first x/2 observations enclosed in the matrix and save them in another
> matrix (botheasrm) and the second x/2 observations need to go in another
> matrix (botheasrf).  To correctly do the first part I used the code
> 
> matrix define botheasrm = J(`count'/2, 1, 0)
> 
> forvalues i = 1/`z' { 
> 	forvalues j = 1/1 { 
> 		matrix botheasrm[`i',`j']= easr[`i',`j'] 
> 	} 
> 
> where z is x/2 previously defined.  However I am having trouble copying
> the second half of the matrix and any help would be appreciated.
> 
> Thanks in advance,
> Christopher D Fergusson
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