# bwplot

From lattice v0.3-1
by Deepayan Sarkar

##### 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)

##### See Also

##### Examples

```
data(singer)
bwplot(voice.part ~ height, data=singer, xlab="Height (inches)")
```

*Documentation reproduced from package lattice, version 0.3-1, License: GPL version 2 or later*

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