[R] trellis plot question

[Douglas Bates]

Suzette Blanchard <suzette at sdac.harvard.edu> writes:

> Does anyone know how to get an id number in the little header 
> above each individual plot within a trellis plot?  The default
> seems to be to print the word id and add a line indicating on
> a linear scale where the current id sits.

See the description of the strip argument in ?xyplot and the
documentation for strip.default.  There are currently 6 different
styles available or you can add your own.