Hi all.
I would like to highlight overlapping regions of two densities and I could
not find a way to do it.
Here is the sample code:
myd <- c(2,4,5, 4,3,2,2,3,3,3,2,3,3,4,2,4,3,3,3,2,2.5,
2, 3,3, 2.3, 3, 3, 2, 3)
myd1 <- myd-2
plot(range(density(myd)$x, density(myd1)$x), range(density(myd)$y,
density(myd1)$y), type = "n")
lines(density(myd), col=1, lwd=4)
lines(density(myd1), col=2, lwd=4, lty=2)
So, I am trying to highlight the region from 1 to 4, on x axis, taking the
minimum value of corresponding y values.
I am aware of polygon function but don't know how to define correctly x and
y coordinate vectors for this function.
Could someone help me to solve this?
Thank in advance.
Andrija
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