[R] filling the area
Marc Schwartz
marc_schwartz at comcast.net
Thu Jan 25 15:57:24 CET 2007
Yep.
Keep in mind that you need to define the complete boundaries of the
region to be colored. So you need to add the coordinates of the lower
left and lower right hand points, which are [min(x), min(y)] and
[max(x), min(y)].
HTH,
Marc
On Thu, 2007-01-25 at 11:14 -0300, Mauricio Cardeal wrote:
> Thank you all. One more question about the syntax below: min(y) twice, is it?
>
> polygon(c(min(x), x, max(x)), c(min(y), y, min(y)), col = "blue")
>
> polygon( c(min(x), x, max(x)), c( min(y), y, min(y)), density=100 )
>
> Best whises,
> Mauricio
>
>
>
> Marc Schwartz escreveu:
> > On Thu, 2007-01-25 at 10:18 -0300, Mauricio Cardeal wrote:
> >
> >> Please, how to fill the area under the curve?
> >>
> >> x <- c(1:10)
> >> y <- c(rnorm(10))
> >> plot(x,y)
> >> lines(x,y)
> >>
> >> Thanks,
> >> Mauricio Cardeal
> >>
> >
> > See ?polygon
> >
> > x <- 1:10
> > y <- rnorm(10)
> >
> > plot(x,y, type = "o")
> >
> > polygon(c(min(x), x, max(x)), c(min(y), y, min(y)), col = "blue")
> >
> >
> > HTH,
> >
> > Marc Schwartz
> >
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