Date: Tue, 26 Jun 2007 14:44:40 -0300
Reply-To: Hector Maletta <hmaletta@fibertel.com.ar>
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: Hector Maletta <hmaletta@fibertel.com.ar>
Subject: Re: Remove from listserv.
In-Reply-To: <605172.24470.qm@web30112.mail.mud.yahoo.com>
Content-Type: text/plain; charset="iso-8859-1"
You can remove yourself any day, Tina. You received a message when
you subscribed, telling you exactly how.
In essence, you should address the list SERVER, not us, humble list
members. Just one or two days ago, if you care to look back, you will find
another lonely soul asking the same question, and getting the right answer.
Just as an exercise, do try and find by yourself either way.
Hector
-----Original Message-----
From: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU] On Behalf Of
Tina Maschi
Sent: 26 June 2007 13:58
To: SPSSX-L@LISTSERV.UGA.EDU
Subject: Re: Remove from listserv.
Can someone help!
How does one get removed from this listserv?
Thanks,
Tina
----- Original Message ----
From: Albert-jan Roskam <fomcl@yahoo.com>
To: SPSSX-L@LISTSERV.UGA.EDU
Sent: Tuesday, June 26, 2007 11:19:48 AM
Subject: Re: Matrix question
Hi Marta & Brian,
You taught me well, Jedi master ;-)
Thanks a lot! It's a fascinating, and very useful
command! I wouldn't have been able to come up with
your solution myself.
Best wishes,
Albert-Jan
--- Marta Garcia-Granero <mgarciagranero@gmail.com>
wrote:
> Hi Albert-jan,
>
> Con fecha martes, 26 de junio de 2007, 15:14:37,
> escribió:
>
> AjR> I just started using the MATRIX command for the
> first
> AjR> time and I have a question about this.
>
> Wellcome to the dark side, my "padawan" (did you see
> the Star Wars
> trilogies?)
>
> AjR> I want to subtract to matrices/files (say file
> X and
> AjR> file Y) which have an identical layout (numbers
> of
> AjR> rows and colunms are the same). All variables
> are of
> AjR> the numerical type. Missing values are coded as
> AjR> '99999999'. Of course, I don't want to
> calculate the
> AjR> difference when either of the cells is a
> missing
> AjR> value. The syntax below calculates the
> difference
> AjR> matrix, but something goes wrong with the
> missing
> AjR> values. Can anyone help me correct this syntax?
> Or
> AjR> should I just rephrase this question and say
> "Martha,
> AjR> could you help me with this MATRIX question"?
> ;-)
>
> MATRIX.
> * Sample data, replace by your own *.
> COMPUTE m_filex={1,2,3,99999999;
> 5,6,7,8;
> 9,10,11,99999999}.
> COMPUTE m_filey={11,10,9,99999999;
> 7,6,5,4;
> 3,2,1,99999999}.
> * Since m_filex and m_filey are conformant, you just
> need to know the number
> of rows and columns of one of them *.
> COMPUTE k=NROW(m_filex).
> COMPUTE m=NCOL(m_filex).
> * Initialize empty difference matrix with missing
> values *.
> COMPUTE d=MAKE(k,m,99999999).
> * Now, elementwise inspection of every element to
> replace value in difference
> matrix only if no value is missing in m_filex/y *.
> LOOP i = 1 TO k.
> . LOOP j=1 TO m.
> . DO IF (m_filex(i,j) NE 99999999) AND
> (m_filey(i,j) NE 99999999).
> * Compute a single element, not the whole matrix *.
> . COMPUTE d(i,j) = m_filex(i,j) - m_filey(i,j).
> . END IF.
> . END LOOP.
> END LOOP.
> * save d / outfile =
> 'd:\temp\difference_matrix.sav'.
> PRINT d.
> END MATRIX.
>
> Best regrads,
> Marta
>
Cheers!
Albert-Jan
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Did you know that 87.166253% of all statistics claim a precision of
results that is not justified by the method employed? [HELMUT RICHTER]
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