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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> >Pspp-users@gnu.org
> >http://lists.gnu.org/mailman/listinfo/pspp-users
> >
>
>
>
> _______________________________________________
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