Re: Scatterplot

[Jason Stover]

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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> >  
> 
> 
> 
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