How to nicely rescale lattice figures?

Question

When preparing figures for printing I often need to make them much smaller than they appear on screen. It is not uncommon to have figures down to just a few cm across. With the

Answer 1

You need to pass the cex=... to the legend / key, not the entire plot:

This is the default:

xyplot(decrease ~ treatment, OrchardSprays, groups = rowpos,
       type = "a",
       auto.key =
         list(space = "right", points = FALSE, lines = TRUE))

Compare the results when you use cex=0.25 in the key:

xyplot(decrease ~ treatment, OrchardSprays, groups = rowpos,
       type = "a",
       auto.key =
         list(space = "right", points = FALSE, lines = TRUE, cex=0.25))