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Re: st: dot product across many variables


From   Austin Nichols <austinnichols@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: dot product across many variables
Date   Tue, 29 Nov 2011 14:30:33 -0500

daniel klein <klein.daniel.81@googlemail.com>:

Except, don't create dotproduct as a byte, in case the sum gets large
(when the number of years gets large).

On Tue, Nov 29, 2011 at 2:24 PM, daniel klein
<klein.daniel.81@googlemail.com> wrote:
> "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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