Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: dot product across many variables


From   Austin Nichols <[email protected]>
To   [email protected]
Subject   Re: st: dot product across many variables
Date   Tue, 29 Nov 2011 14:30:33 -0500

daniel klein <[email protected]>:

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
<[email protected]> 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
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index