Date:         Wed, 25 May 2011 06:58:16 -0700
Reply-To:     David Marso <david.marso@gmail.com>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         David Marso <david.marso@gmail.com>
Subject:      Re: using vectors and matrixes
In-Reply-To:  <007c01cc1ae0$d3853260$7a8f9720$@ro>
Content-Type: text/plain; charset=us-ascii

See the MATRIX language documentation in the manual.
You can very easily implement this.

Bogdan Voicu wrote:
>
> Dear all,
>
>
>
> I have a repetitive task, which requires computing several weighted means
> for each case in a data base.
>
> More exactly, for each case there are 9 variables (zR011HF to zr019HF),
> that
> I need to sum up weighted with different weights, depending on the values
> (ranging from 1 to 6) of another variable (idd6bis).
>
>
>
> The operation repeats with several other sets of variable and I expect
> that
> I will need to change several times the weights, when simulating the final
> model.
>
>
>
> My idea was to build a series of commands like this one:
>
>
>
> vector prim=zR011HF to zr019HF.
>
> vector weights=
>
> 65           5              5              10           6              5
> 4              0              0
>
> 40           15           5              15           11           9
> 5              0              0
>
> 50           7              5              15           10           8
> 5              0              0
>
> 30           10           10           20           15           10
> 5              0              0
>
> 10           20           10           20           30           5
> 5              0              0
>
> 5              5              5              15           10           5
> 5              25           25.
>
> loop #i=1 to 6.
>
>   loop #j=1 to 9.
>
>                 compute k=#j+(#i-1)*#j.
>
>                if idd6bis=#i zR01HF=sum(zR01HF, weights(k)*prim(#j)).
>
>   end loop.
>
> end loop.
>
> exe.
>
> del var k.
>
>
>
> The above solution does not work. I cannot use the vector command for the
> weights. My question is which command should I use to declare the weights
> as
> a matrix/vector, using the syntax file.
>
>
>
> Thank you in advance!
>
> Bogdan
>
>
>
>
>
>
>
>   _____
>
> Bogdan Voicu
>
> Principal research fellow, Romanian Academy of Science, Research Institute
> for Quality of Life
>
> Associate professor, Department of Sociology, Lucian Blaga University of
> Sibiu
>
>  &lt;mailto:bogdan@iccv.ro&gt; bogdan@iccv.ro;
> &lt;http://www.bogdanvoicu.ro/&gt;
> http://www.bogdanvoicu.ro
>


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