Style List for Boxplots
SUMMARY:
Lists that contain defaults for arguments to boxplot and bxp. These are:

bxp.splus bxp.att bxp.old

These can be given in the style.bxp argument to boxplot or bxp to produce a specific style of boxplot. The important features of each style are summarized below.

DATA DESCRIPTION:
bxp.splus:
an empty list (since the defaults to all of the arguments correspond to the "splus" style).
bxp.att:
a list equivalent to: list(boxwex=1, boxcol=-1, medpch=16, medline=F, medlwd=1, medcol=NA, confnotch=T, confcol=-1, whisklty=4, staplelty=4, outpch=1, outline=F)
bxp.old:
a list equivalent to: list(boxwex=1, boxcol=-1, medchar=F, medline=T, medlwd=1, medcol=NA, confnotch=T, confcol=-1, whisklty=4, staplewex=.125, staplehex=0, outchar=T, outpch=NA, outline=F)
DETAILS:
The "splus" style contains a filled-in box with the median shown as a a band of the background color. Outliers appear as lines that are as wide as the box. The staples (ends of the whiskers) are also as wide as the box.

The "att" style shows the median as a filled-in octagon and outliers as smaller non-filled octagons. The staples are as wide as the box and dashed (actually line type 4 which is usually dashed). This style is based on suggestions by Tukey (1990).

The "old" style represents the median as a line, and outliers as asterisks.

See boxplot for a description of the specific components contained in these datasets.

REFERENCES:
Tukey, J. W. (1990). Data-based Graphics: Visual Display in the Decades to Come. Statistical Science, 5 pp. 327-339.
SEE ALSO:
boxplot , bxp .
EXAMPLES: 
# note that the argument name style.bxp can not be abbreviated
boxplot(rnorm(10), style.bxp = "old")
boxplot(rnorm(10), style.bxp = bxp.att)