[R] plotting GAM

[Sean O'Riordain]

Emil,
I've no clue what gam() does nor how it works, but saying that is it
possible to use lines(,lwd=???) in someway and plot on top of the
original line?

cheers,
Sean


On 24/08/05, Tkadlec Emil <tkadlec at prfnw.upol.cz> wrote:
> Sear Sean,
> here is the more working example (I  use the latest version of everything
> on my PC):
> 
> x1<-runif(100,-5,5)
> x2<-runif(100,1,50)
> e<-rnorm(100)
> y<-.3*x1-0.5*x2+e
> 
> mod<-gam(y~s(x1)+s(x2))
> par(mfrow=c(1,2))
> plot(mod,residuals=T,se=T)
> --------
> So you get two figs. My concern is to enlarge the regression line, not the
> point or enything else.
> Best,
> Emil
> 
> 
> 
> > Hi Emil,
> > can you give us a working example of what you're trying to do?
> >
> > cheers!
> > Sean
> >
> > ps. as per the posting-guide... :-)
> >
> > On 24/08/05, Tkadlec Emil <tkadlec at prfnw.upol.cz> wrote:
> > > Dear colleagues,
> > > I would like to have GAM regression lines (package gam) thicker than
> > > the default setting does. Is there any way to change the width of
> > > regression line when plotting gam.objects from the package GAM with
> > > more than one predictor? Changing lwd parameter in plot function
> > > controls all line components, including points making them thicker
> > > as well, which is not what I would like to have. Thanks for help.
> > > Best, Emil
> > >
> > > **************************************************************
> > > Emil Tkadlec
> > > Palacky University                PrF UP
> > > Faculty of Science                katedra ekologie
> > > Department of Ecology             tr. Svobody 26
> > > tr. Svobody 26                    771 46 OLOMOUC
> > > 771 46 Olomouc                    tel. 58 563 4561
> > > Czech Republic
> > > email: tkadlec at prfnw.upol.cz
> > >
> > > ______________________________________________
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> > > PLEASE do read the posting guide!
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> > >
> 
> 
> **************************************************************
> Emil Tkadlec
> Palacky University                PrF UP
> Faculty of Science                katedra ekologie
> Department of Ecology             tr. Svobody 26
> tr. Svobody 26                    771 46 OLOMOUC
> 771 46 Olomouc                    tel. 58 563 4561
> Czech Republic
> email: tkadlec at prfnw.upol.cz
> **************************************************************
> 
>