[R] R] highlight an area below a line

[Ken Knoblauch]

How about,

d<-density(rnorm(10000))
plot(d)
wvs <- which(d$x > 1 & d$x < 2)
polygon(d$x[c( wvs[1], wvs, wvs[length(wvs)] ) ], c(0, d$y[wvs], 0), col =
"bisque")

Georg Otto a écrit:
Hi,

if I plot a normal distribution like this:

d<-density(rnorm(10000))
plot(d)

how can I highlight the area below the graph in a certain interval,
say x=1,2?  I understand that I should use polygon, but I have not
found the right way to give the result that I want.

Thanks a lot!

Georg
-- 
Ken Knoblauch
Inserm U371
Cerveau et Vision
Dept. of Cognitive Neuroscience
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France
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