Hi guys, I used the following R code to generate one plot
library(lattice) xyplot(Y~X1|as.factor(X2)*as.factor(X3), groups = as.factor(X4), data=mydata) Both X2 and X3 have three values. X4 has two values. I got 3x3 grids and in each grid there are two curves about y~x1 for the two X4 values. I am quite happy with the plot except that I need a different layout of the 3x3 layout. For example, X2={"m=2", "m=5", and "m=10"} and it plots with the order "m=10", "m=2", and "m=5". Is there any way I can control the order of the groups in the whole plot? Thanks a lot, --Jerry [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.