On 13-12-18 2:08 PM, capricy gao wrote:
I found all the color transparency was defined with character color, or rgb
color. What if I have number code and still try to modify the transparency?
For example:
x=c(1:5)
color=c(2,2,3,4,5)
plot(x, col=color)
plot(x, col=color,pch=20)
here I defined color by numbers, how can I modify the transparency?
See the examples for ?palette.
Duncan Murdoch
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