Try:

x <- c(1,2,1,1,6,7,-1,-1,5,-1)
plot(x, col = ifelse(x == -1, "red", "black"), pch = 16)


On Thu, May 29, 2008 at 1:23 PM, uv <uvtravel@hotmail.com> wrote:

>
> Hi. I am plotting graphs for values ranging between -1 and 10, for example:
> (1,2,1,1,6,7,-1,-1,5,-1)
> I am trying to plot the graphs so that the points with value of -1 will be
> in one specific color, and the rest of the points will be in one different
> specific color. I would be grateful for any idea of how to do that in two
> colors.
> Thanks for any hint.
> --
> View this message in context:
> http://www.nabble.com/Plot-colors-tp17539738p17539738.html
> Sent from the R help mailing list archive at Nabble.com.
>
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>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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