# bwplot

0th

Percentile

##### Box and Whisker Plots

Draw Box and Whisker Plots

Keywords
hplot
##### Usage
bwplot(formula, box.ratio = 1, ...)
##### Arguments
formula
a formula describing the form of conditioning plot. A formula of the form y ~ x | g1 * g2 * ... indicates that plots of y versus x should be produced conditional on the variables g1,g2,....
box.ratio
gives the ratio of the width of the rectangles to the inter rectangle space.
...
other arguments
##### Details

see the documentation for trellis.args. Behaviour when trying to modify the y-axis via scales\$y is not defined. (It might give what you want, but again, it might not.) The default value of ylim is an interval containing c(1,number of levels of y), with the extra amount calculated based on box.ratio (not 7%, the usual default) .

##### Value

• An object of class trellis'', plotted by default by print.trellis.

##### synopsis

bwplot(formula, data = parent.frame(), aspect = "fill", layout = NULL, panel = panel.bwplot, prepanel = NULL, scales = list(), strip = TRUE, groups = NULL, xlab, xlim, ylab, ylim, box.ratio = 1, ..., subscripts = !missing(groups), subset = TRUE)

trellis.args, panel.bwplot,Lattice
data(singer)
bwplot(voice.part ~ height, data=singer, xlab="Height (inches)")