[R] Highlight Points in a Plot
dwinsemius at comcast.net
Mon May 3 21:43:34 CEST 2010
On May 3, 2010, at 3:16 PM, SamT wrote:
> For simplicity we'll assume my code looks as follows
> which produces a diagonal line.
> Ideally, I'd like to highlight or label in a different color certain X
> values (say 50,55,60,65)
> Is there a function which will allow me to do this?
Yes, ecdf() which returns a function
points(c(50,55,60,65), ecdf(1:1000)( c(50,55,60,65) ), col=c("red",
"green", "yellow", "blue") )
Draws colored points.
Could also use text() with same coordinates provided by a
"highlightvector" and ecdf(datavector)(highlightvector).
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David Winsemius, MD
West Hartford, CT
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