Box Plots from Summaries
Usage
bxp(z, notch = FALSE, width = NULL, varwidth = FALSE, notch.frac = 0.5,
border = par("fg"), col = NULL, log = "", pars = NULL, ...)
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.
|
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.
|
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.frac
|
numeric in (0,1). When notch=TRUE, the fraction
of the box width that the notches should use.
|
border
|
character, the color of the box borders. Is recycled for
multiple boxes.
|
col
|
character; the color within the box. Is recycled for
multiple boxes
|
log
|
character, indicating if any axis should be drawn in
logarithmic scale, as in plot.default.
|
pars,...
|
Graphical parameters can be passed as arguments to
this function, either as a list (pars) or normally(...).
|
Description
bxp(..) draws box plots based on the given summaries in z.
It is usually called from within boxplot(..), but can be invoked
directly.Value
An invisible vector with the x-coordinates of box centers, useful
for adding to the plot.Examples
str(bx.p <- boxplot(split(rnorm(100), gl(5,20)), plot = FALSE))
op <- par(mfrow= c(2,2))
bxp(bx.p)
bxp(bx.p, notch = TRUE)
bxp(bx.p, notch = TRUE, col= 'lightblue')
bxp(bx.p, notch = TRUE, col= 'lightblue', border='red', log = 'x')
par(op)