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xsum2
2011 Nov 09
2
plot separate groups with plotmeans()
Hi,
I often use plotmeans() from the gplots package to quickly visualize a
pattern of change. I would like to be able to plot separate lines for
different groups, but the function gives an error when a grouping
variable is included in the formula argument.
For instance,
> require(gplots)
> x <- data.frame(Score=rnorm(100), Time=rep(1:10, 10),