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RE: st: dot product across many variables


From   Nick Cox <n.j.cox@durham.ac.uk>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   RE: st: dot product across many variables
Date   Tue, 29 Nov 2011 19:32:01 +0000

Good. Now, any zero-liners? 

Nick 
n.j.cox@durham.ac.uk 


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of daniel klein
Sent: 29 November 2011 19:25
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: dot product across many variables

"Any one-liners?"

Sure.

mata : st_store(., st_addvar("byte", "dotproduct"), rowsum(st_data(.,
"first1 first2 first3"):*st_data(., "second1 second2 second3")))

Best
Daniel
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