Dear R-users, I'd like to use an xyplot(lattice) in which in each panel I have points with different point-character and color, and additional lines with the same color. Please find below a toy example in which I did not manage to change such parameters, and the associated basic plot() in which I show what I aim to within lattice. Thanks for any help you could provide, Giancarlo Camarda library(lattice) y <- seq(0,1, length=15) yy <- y + rnorm(15,sd=0.05) dataset <- data.frame(time = rep(1:5,times=3), y = y, yy = yy, type = rep(LETTERS[1:3], each=5)) xyplot(yy+y ~ time | type, dataset, layout=c(3,1), type=c("p", "l"), col=c(1,2), panel = function(...) { panel.superpose.2(...) }) par(mfrow=c(1,3)) plot(1:5, yy[1:5], pch=1, col=3, ylim=c(0,1)) lines(1:5, y[1:5], col=2) plot(1:5, yy[1:5+5], pch=2, col=4, ylim=c(0,1)) lines(1:5, y[1:5+5], col=2) plot(1:5, yy[1:5+10], pch=3, col=5, ylim=c(0,1)) lines(1:5, y[1:5+10], col=2) ---------- This mail has been sent through the MPI for Demographic ...{{dropped:10}}