[R] How to plot several graphs in a single 2-D figure?

[Liaw, Andy]

1.  Use xlim and ylim in plot(...) to make sure the axes are the same.

2.  For overlaying graphs, use plot(..., axes=FALSE, xlab="", ylab="") to
suppress the axes and labels.

Andy
> -----Original Message-----
> From: Feng Zhang [mailto:f0z6305 at labs.tamu.edu]
> Sent: Thursday, April 10, 2003 4:03 PM
> To: Iyue Sung
> Cc: R-Help
> Subject: Re: [R] How to plot several graphs in a single 2-D figure?
> 
> 
> Thanks, Iyue
> 
> But here the data1 and data2 are not necessarily two vectors.
> Maybe they are results from some other functions, defined
> as a data structure.
> Like using norMix package,
> 
> x <- norMix(mu=c(-1,0,1.5),sig2=c(.49,.36,.16),w=c(.4,.3,.3));
> plot(x); %% x is not a vector, but a structure
> y <- norMix(mu=c(-2,0,2),sig2=c(.16,.36,.64),w=c(.4,.3,.3));
> par(new=T);
> plot(y);
> 
> The result graph is messed up and x,y dont have consistent axis label
> settings.
> 
> Fred
> 
> ----- Original Message -----
> From: "Iyue Sung" <isung at epidemiology.com>
> To: "Feng Zhang" <f0z6305 at labs.tamu.edu>
> Sent: Thursday, April 10, 2003 2:55 PM
> Subject: RE: [R] How to plot several graphs in a single 2-D figure?
> 
> 
> 
> Fred, Try:
> 
> >xrange<-range(c(data1[,1],data2[,1]))
> >yrange<-range(c(data1[,2],data2[,2]))
> >
> >plot(data1, xlim=xrange, ylim=yrange, pch=1)
> >points(data2, pch=2)
> 
> -Iyue
> 
> > -----Original Message-----
> > From: Feng Zhang [mailto:f0z6305 at labs.tamu.edu]
> > Sent: Thursday, April 10, 2003 3:39 PM
> > To: R-Help
> > Subject: [R] How to plot several graphs in a single 2-D figure?
> >
> >
> > Hi, R-listers
> >
> > I tried to plot several graphs in a sigle x-y coordinate
> > settings, like the
> > following:
> > |(y)                           s
> > |    ******               s
> > |               *****      s
> > |    sssssssssssssssssss
> > |_______________________________(x)
> > where "*" and "s" denote two diffrent plots.
> >
> > However, when I used
> > plot(data1); % data1 is the data points of "*"
> > par(new=T);
> > plot(data2); % data2 is the data points of "s"
> >
> > I found that the x and y labels are messed up, since
> > different graphs use
> > diffrent unit length on the x-axis and y-axis.
> >
> > So is there someway to avoid this problem?
> > Or is there some other function plottting multiple plots in
> > one x-y axis setting?
> >
> > Thanks for your point and help.
> >
> > Fred
> >
> > ______________________________________________
> > R-help at stat.math.ethz.ch mailing list
> > https://www.stat.math.ethz.ch/mailman/listinfo/r-help
> >
> 
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