[R] How to produce notches in bwplot?

[Michael Kubovy]

Dear r-helpers,

tst <- data.frame(as.numeric(x <- 1:20), f <- rep(c('hi','lo'), times  
= 10))
with(tst, bwplot(f ~ x, panel = function(x, y){panel.bwplot(x, y, pch  
= '|', stats = boxplot.stats, fill = 8, varwidth = T)}))

I can't figure out from the documentation how to tell stats that I  
would like to see notches or (even bands).

Here is what I've done. (By the way, there is something about the  
style of R documentation that has --- more than once --- led me to  
these kinds of problems.)
RSiteSearch('bwplot notch') gives me nothing (as well as other  
similar queries).
xyplot {lattice} tells me about panel.bwplot, but does not illustrate  
its use.
panel.bwplot {lattice} tells me about the fact that the default  
setting of stats to boxplot.stats, but doesn't give an example.
boxplot.stats {grDevices}  tells me that the default setting is  
do.conf = TRUE, which I gathered meant that notches would be computed  
and hence plotted.

Does anyone have advice about how I could have gone about finding out  
how to do this (preferably from documentation rather than reading code)?
_____________________________
Professor Michael Kubovy
University of Virginia
Department of Psychology
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