Date:         Sun, 27 Feb 2005 19:33:26 +0000
Reply-To:     Jeremy Miles <jnvm1@york.ac.uk>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Jeremy Miles <jnvm1@york.ac.uk>
Subject:      Re: Boxplot question
Comments: To: Christa Scholtz <scholtz@canelect.ca>
In-Reply-To:  <195092A15F73E047A0F3404CE883696010C989@ceamail.cea-domain>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

It sounds (to me) as if the problem is that the scale of the variables
that you are plotting differs - if that's the case, you're going to have
that problem.

If you are desperate to show the variables on one chart, I would rescale
them, by multiplying / dividing by a constant (and adding / subtracting
if necessary).  In SPSS 12 (and I guess 13, we wait patiently at our
university ...) you can then have a derived axis on the other side of
the chart.  Select Chart, and then "Show derived axis".

If I misunderstood your problem, apologies.

Jeremy




Christa Scholtz wrote:
> Hello,
>
>
>
> When I generate a series of boxplots  (using the GUI, admittedly) there is a black band within each box which I would assume indicates the median.  I am a bit confused however, since the width of this band doesn't change relative to the size of the box/IQR.  This creates some visual confusion, since my boxes have different lengths/IQRs, and hence the band covers a significant portion of those with small IQRs.   Is there a way to have the boxplot generate a thin line to indicate the median versus this larger band?
>
>
>
> Hope this is clear.
>
>
>
> Cheers,
>
> Christa
>
>
>
>
>
> Christa Scholtz, PhD
>
> Policy and Statistical Analysis / Politiques et analyse de statistiques
>
> Government Relations / Relations gouvernementales
>
> Canadian Electricity Association /  Association canadienne de l'électricité
>
>
>


--
Jeremy Miles
mailto:jnvm1@york.ac.uk             http://www-users.york.ac.uk/~jnvm1/
Dept of Health Sciences (Area 4),  University of York,  York,  YO10 5DD
Phone: 01904 321375       Mobile: 07941 228018         Fax 01904 321320