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To add to the discussion yesterday on
the list, while Statistics does not have a built-in violin plot, it is
possible to construct a template for GraphBoard, and add this chart type
to the Graphboard gallery available from the Graphs menu in Statistics.
I can't post the chart here, but I have
posted an example with a little discussion in the Visualization forum on
the SPSS Community (www.ibm.com/developerworks/spssdevcentral).
I regret that I can't post the template at this time.
Jon Peck
Senior Software Engineer, IBM
[hidden email]
312-651-3435
From:
"Cleland, Patricia
(EDU)" <[hidden email]>
To:
[hidden email]
Date:
02/09/2011 12:38 PM
Subject:
[SPSSX-L] need
help creating violin plots
Sent by:
"SPSSX(r)
Discussion" <[hidden email]>
I have data on the % of clients who met a
criterion (format f8.2) for approx 5000 clinics. The clinics are nested
in about 100 Agencies and the Agencies are nested in 7 Regions. Each Clinic
‘belongs’ to only 1 Agency and each Agency is a member of only 1 Region.
Currently the Clinic and Agency ID’s are
strings, but could easily be changed to numeric values if that makes any
difference.
In order to show graphically the variation
in % of clients who meet a criterion both within and among Agencies, I
want to do violin plots separately for each Region, that is, 7 separate
charts, showing the data for each Agency in the Region.
I have some syntax from a colleague for producing
violin plots but it’s based on using R as a stand-alone product rather
than as an extension of SPSS. Since I’m a newbie at R, I don’t know what
to modify in the syntax for use as an SPSS extension.
Any help would be appreciated.
Any suggestions for learning R, especially
as an SPSS extension, would also be appreciated.
Thanks.
Pat
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