[R] Change line colors based on data values in Lattice

[Liu, Andrew]

Say I have

x = seq(1, 40)
y = seq(1, 40)^2
g = rep(c("A", "B", "A", "B"), each = 10)
xyplot(y~x, groups = g, type = 'l')


Is there a way to have a single line and have it be one color when g == "A", and another when g == "B"?

Thanks!

Regards,
Andrew Liu
Fixed Income | Investment Fellow
T. Rowe Price
100 E. Pratt St, BA-0735
Baltimore, MD 21202
* Office: (410) 345-2750
* E-mail: andrew_liu at troweprice.com<mailto:andrew_liu at troweprice.com>
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