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R: PSPP-BUG: Median Bug?

From: Fabio Bordignon
Subject: R: PSPP-BUG: Median Bug?
Date: Thu, 10 Mar 2011 08:08:41 +0100

Dear Ben, 
Thank You for your fast reply.
Consider this simple variable distribution. The correct median should be 2
("scuola media inferiore") but PSPP says 3 ("diploma superiore").

I'm using pspp 0.7.5-g70514b.



-----Messaggio originale-----
Da: Ben Pfaff [mailto:address@hidden 
Inviato: giovedì 10 marzo 2011 6.02
A: Fabio Bordignon
Cc: address@hidden
Oggetto: Re: PSPP-BUG: Median Bug?

"Fabio Bordignon" <address@hidden> writes:

> Hi, I'm Fabio Bordignon and I'm using PSPP in my course on Social and 
> Political Science Methodology at the University of Urbino - Italy. 
> Today We tried the "median" option of the FREQUENCES command and 
> something didn't
> work: PSPP seems to return wrong values for this statistic. 

Can you give a simple example of what goes wrong?  I see a number of tests
of PSPP's median calculation functionality, and the tests pass, so it is not
obvious what is wrong.

What version of PSPP are you using?


Ben Pfaff

Attachment: example MEDIAN.pdf
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