Help with multicolored points in one plot
On Thu, 26 Feb 2004, David Thibault wrote:
Hello all, I have a situation where I'd like to plot points from multiple groups of data in one plot. I'd like each group's points to be colored a different color. I've seen people comment on how you can alternate colors by providing a range of colors and then it will loop through each color as it plots individual points. However, that just goes by individual points and not by group.
Concatenate the groups into a single x vector and y vector, together with
a vector of group identifiers (eg 1,1,1,1,1,2,2,2,2,2,2,2,3,3), then
plot(y~x, col=group)
or to get more control
prettycolors<- c("forestgreen","goldenrod","sienna")
plot(y~x, col=prettycolors[group])
There are examples in demo(graphics).
-thomas