[R] How to shade vertical bands in a graph?

del pes cgdelnet at hotmail.com
Sun Aug 26 00:04:29 CEST 2007


Thank you all for your answers, the rect function with seq (to do regular rectangles) worked perfectly

fakedat<-0.985+rnorm(80)/100
plot(fakedat,main="My Striped Plot",type="n")
rect(seq(5,75,by=10),par("usr")[3],seq(10,80,by=10),par("usr")[4],
col="yellow")
points(fakedat,type="b")
abline(h=0.98)

Very nice presentation coming out in no time, R is the best!

Delfina




----------------------------------------
> Date: Fri, 24 Aug 2007 20:26:53 +1000
> From: jim at bitwrit.com.au
> To: cgdelnet at hotmail.com
> CC: r-help at stat.math.ethz.ch
> Subject: Re: [R] How to shade vertical bands in a graph?
> 
> del pes wrote:
> > Hello,
> > 
> > I would like to draw vertical yellow bands in my graph, but could not find how to do that in the documentation.
> > 
> > I set up a page to show what I would like to achieve: http://rstudent.blogg.de/eintrag.php?id=1 (the first picture was manually colored with the Gimp).
> > 
> Hi Delfina,
> For a one-off, I would use the rect function.
> 
> fakedat<-0.985+rnorm(80)/100
> plot(fakedat,main="My Striped Plot",type="n")
> rect(seq(5,75,by=10),par("usr")[3],seq(10,80,by=10),par("usr")[4],
>   col="yellow")
> points(fakedat,type="b")
> abline(h=0.98)
> 
> Jim

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