Yu, Xuesong <xyu <at> scharp.org> writes:
> I am trying to use xyplot to plot several lines in one panel with red
> color for a group of lines, say 3 lines and blue color for another
> group of lines, say 4. I know this can be easily done using regular
> plot function. But i could not figure out how to do this in xyplot.
>
states <- data.frame(state.x77,
state.name = dimnames(state.x77)[[1]],
state.region = state.region)
xyplot(Murder ~ Population, data = states,
groups = state.region,
col.line=c("red","red","green","green"),
panel = panel.superpose,
panel.groups = panel.loess)
# Note the difference when colors are recycled
xyplot(Murder ~ Population, data = states,
groups = state.region,
col.line=c("red","green"),
panel = panel.superpose,
panel.groups = panel.loess)
Dieter
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