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Re: st: Matrix manipulation


From   [email protected] (Brendan Halpin)
To   [email protected]
Subject   Re: st: Matrix manipulation
Date   Wed, 23 Mar 2011 10:30:17 +0000

On Wed, Mar 23 2011, Brendan Halpin wrote:

> On Wed, Mar 23 2011, Maarten buis wrote:
>
>> *------------- begin example ------------
>> mata
>> a = 80, 100, 40 \ 10, -6, 7
>> c = 80 \ 10
>> a :/ c
>> end
>> *-------------- end example -------------
>
> Or more generally,
>
> mata
> a = 80, 100, 40 \ 10, -6, 7
> c = a[,1]*J(1,cols(a),1)
> a :/ c
> end
>
> Brendan

Or even just

a :/ a[,1]

Playing with Mata is finally nudging my knowledge of matrix algebra up
from "understand the principles but can never remember the details" to
some level of practical functionality (but only just!).

Brendan
-- 
Brendan Halpin,  Department of Sociology,  University of Limerick,  Ireland
Tel: w +353-61-213147 f +353-61-202569 h +353-61-338562; Room F1-009 x 3147
mailto:[email protected]  http://www.ul.ie/sociology/brendan.halpin.html
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