bxp {base} | R Documentation |
bxp(..)
draws box plots based on the given summaries in z
.
It is usually called from within boxplot(..)
, but can be invoked
directly.
bxp(z, notch = FALSE, width = NULL, varwidth = FALSE, notch.frac = 0.5, border = par("fg"), col = NULL, log = "", pars = NULL, ...)
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(... ). |
An invisible vector with the x-coordinates of box centers, useful for adding to the plot.
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)