Re: Scatterplot

[David Nasatir]

Thanks, Jason.

Using the syntax below, I do, indeed, obtain the desired statistics and 
the variables PRED and RESID are created.  Now, how do I get the 
scatterplot using PRED and RES without leaving PSPP?

Thanks again,

David


Jason Stover wrote:
> With the REGRESSION procedure, the syntax would be something
> like this:
>
> REGRESSION
>         /VARIABLES= educ
>         /DEPENDENT=      happy
>         /STATISTICS=COEFF R ANOVA
>         /SAVE= PRED RESID.
>
> You can then make scatterplots using residuals and predicted values.
>
> On Mon, Jul 20, 2009 at 09:42:48AM -0700, David Nasatir wrote:
>   
> > Hello,
> >
> > I'm the guy trying to fit a line to a scatterplot in PSPP. 
> >
> > John Darrington suggested it might be done using the REGRESSION 
> > procedure with "...a bit more manual work".
> >
> > What would that work be?  What steps should I follow?
> >
> > I understand that the syntax in SPSS would be something like:
> >
> > * Curve Estimation.
> > TSET NEWVAR=NONE .
> > PREDICT THRU END.
> > CURVEFIT /VARIABLES=happy  WITH educ
> >  /CONSTANT
> >  /MODEL=LINEAR
> >  /PLOT FIT.
> >
> > but, of course, that doesn't work in the version of PSPPIRE 0.7.2 that I 
> > have been using
> >
> > At the moment I must move the data to Open Office Calc, do the 
> > regression using that program and then insert a line.  I would rather 
> > just stay in PSPPIRE 0.7.2 if possible.
> >
> > Thanks for your help and for all the good work you have been doing
> >
> > David
> >
> >
> > John Darrington wrote:
> >     
> > > On Sun, Jul 19, 2009 at 08:37:54PM -0300, michel wrote:
> > >     
> > >     Hello,
> > >
> > >     
> > >
> > >     A Windows user is asking me if there is some way to fit a curve to a
> > >
> > >     scatterplot on PSPP. I don't think it is possible
> > >
> > >     so far, but I don't know for sure.
> > >
> > >     
> > >
> > >     Is there some way to do this?
> > >
> > >
> > > Not exactly.  The procedure would be CURVEFIT, which we don't currently
> > > implement.
> > >
> > > But the job could be done with the REGRESSION procedure - the user just
> > > has to do a bit more manual work.
> > >
> > > J'
> > >
> > >  
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