On 10/5/08, Saptarshi Guha <[EMAIL PROTECTED]> wrote: > Hello, > I have a shingle A and B. A has 5 levels and B has 4 levels. > Also, I have 8 > levels of a factor C. I wish to xyplot( x ~ y | C *A *B,data=data), > > I think this is how the lattice conditioning works: > If i'm not mistaken, all possible combinations of C,A,B > , a subset of the data is accordingly taken and x~y is plotted. > However, I > have empty sets for some levels and these are plotted as empty panels. > (e.g for A=1, there are only 2 levels of B). > > (I saw the solution A:B on the mailing list, which does not work in my > case, since I'd like the multi-level strip titles.)
With some simple string manipulation, you should be able to write a strip function that reproduces multi-level annotation even with interactions. > Is there a way to solve this? No. Your situation is analogous to a matrix (or array) with NA entries. You cannot omit NA cells without omitting entire rows or columns (margins). On the other hand, you can convert the array into a vector (analogous to conditioning on A:B:C) and then omit individual NA cells. -Deepayan ______________________________________________ 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.
