SPSS tutorials for nominal and ordinal variables (for social science students/researchers in new academic year)

[John F Hall]

Dear listers, especially teachers,

 

I've just finished and uploaded the final drafts of a wedge of syntax-based SPSS tutorials for reading and analysing nominal and ordinal variables (from questionnaire surveys) that I've been working on for the last few weeks.  Not a single equation in 190 pages so far!

 

They're hopefully thoroughly checked and proof-read, but I need users to find any remaining glitches and problems, so all student and early career researchers users welcome at the beginning of the academic year.  Everything is free.

 

Now I have to start on the tutorials for interval variables, but an equation may now creep in.

 

John Hall
[hidden email]
http://surveyresearch.weebly.com

 

 

[Chris Hunt]

Does anybody know if it is possible to draw a regression line on a 3D scatter-plot?

 

Thanks,

Chris

[Marson, Wendy]

I will be out of the office until Thursday, Oct. 7th. I will have limited access to email.

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[ViAnn Beadle]

When you have 3 dimensions, you don’t get a line, you get a plane. GPL will generate a lattice plain (not solid). I think that this was added in Release 17. This syntax works as described for release 19:

 

GGRAPH

  /GRAPHDATASET NAME="graphdataset" VARIABLES=horse mpg weight MISSING=LISTWISE REPORTMISSING=NO

  /GRAPHSPEC SOURCE=INLINE.

BEGIN GPL

  SOURCE: s=userSource(id("graphdataset"))

  DATA: horse=col(source(s), name("horse"))

  DATA: mpg=col(source(s), name("mpg"))

  DATA: weight=col(source(s), name("weight"))

  COORD: rect(dim(1,2,3))

  GUIDE: axis(dim(1), label("Vehicle Weight (lbs.)"))

  GUIDE: axis(dim(2), label("Horsepower"))

  GUIDE: axis(dim(3), label("Miles per Gallon"))

  ELEMENT: point(position(weight*horse*mpg))

  ELEMENT: line(position(smooth.linear(weight*horse*mpg)), color(color.white), size(size."1px"))

END GPL.

 

It uses the sample Cars.sav data file.

 

From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Chris Hunt
Sent: Monday, October 11, 2010 2:46 AM
To: [hidden email]
Subject: 3D plots

 

Does anybody know if it is possible to draw a regression line on a 3D scatter-plot?

 

Thanks,

Chris