[R] Selective Plot Color

2010-01-27 Thread Richardson, Patrick 
Is there a way (with a simple plot) to select all observations greater than a 
certain value and plot them with a different color than the rest of the 
observations in the plot? (i.e. for all observations greater than 10, I want to 
plot them in red, but the rest of the observations remain black. Where can I 
find how to do this?

Patrick


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Re: [R] Selective Plot Color

2010-01-27 Thread Chuck Cleland 
On 1/27/2010 10:00 AM, Richardson, Patrick wrote:
 Is there a way (with a simple plot) to select all observations greater than a 
 certain value and plot them with a different color than the rest of the 
 observations in the plot? (i.e. for all observations greater than 10, I want 
 to plot them in red, but the rest of the observations remain black. Where can 
 I find how to do this?
 
 Patrick

X - runif(30, min=5, max=15)

Y - rnorm(30)

plot(X, Y, col=ifelse(X  10, 'red', 'black'), pch=16)

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