This help topic is for R version 0.60. For the current version of R, try https://stat.ethz.ch/R-manual/R-patched/library/base/html/bxp.html
bxp {base}R Documentation

Box Plots from Summaries

Usage

bxp(z, width, varwidth=FALSE, notch=FALSE, ...)

Arguments

z

a list containing data summaries to be used in constructing the plots. These are usually the result of a call to boxplot, but can be generated in any fashion.

width

a vector giving the relative widths of the boxes making up the plot.

varwidth

if varwidth is TRUE, the boxes are drawn with widths proportional to the square-roots of the number of observations in the groups.

notch

if notch is TRUE, a notch is drawn in each side of the boxes. If the notches of two plots do not overlap then the medians are significantly different at the 5 percent level.

...

Graphical parameters can be passed as arguments to this function.

Value

This function is invoked for its side effect which is to draw box plots based on the given summaries. It is usually called from boxplot, abut can be invoked directly.

[Package base version 0.60 ]