panel.bwplot {lattice}  R Documentation 
This is the default panel function for bwplot
.
panel.bwplot(x, y, box.ratio = 1, horizontal = TRUE, pch, col, cex, font, fontfamily, fontface, fill, varwidth = FALSE, ..., levels.fos, stats = boxplot.stats, coef = 1.5, do.out = TRUE)
x, y 
numeric vector or factor. Boxplots drawn for each unique value of
y (x ) if horizontal is TRUE (FALSE ) 
box.ratio 
ratio of box height to inter box space 
horizontal 
logical. If FALSE, the plot is ‘transposed’ in the sense that
the behaviours of x and y are switched. x is now the
‘factor’. Interpretation of other arguments change
accordingly. See documentation of bwplot for a fuller
explanation.

pch, col, cex, font, fontfamily, fontface 
graphical parameters
controlling the dot. pch="" is treated specially, by
replacing the dot with a line (similar to boxplot )

fill 
color to fill the boxplot 
varwidth 
logical. If TRUE, widths of boxplots are proportional to the number of points used in creating it. 
stats 
a function, defaulting to boxplot.stats ,
that accepts a numeric vector and returns a list similar to the
return value of boxplot.stats . The function must accept
arguments coef and do.out even if they do not use
them (a ... argument is good enough). This function is
used to determine the box and whisker plot. 
coef, do.out 
passed to stats 
levels.fos 
numeric values corresponding to positions of the factor or shingle variable. For internal use. 
... 
further arguments, ignored. 
Creates Box and Whisker plot of x
for every level of
y
(or the reverse if horizontal=FALSE
). By default, the
actual boxplot statistics are calculated using boxplot.stats
.
Note that most arguments controlling the display can be supplied to
the highlevel bwplot
call directly. Unlike the traditional
analog boxplot
, notches are not implemented.
Although the graphical parameters for the dot representing the median
can be controlled by optional arguments, many others can not. These
parameters are obtained from the relevant settings parameters
("box.rectangle"
for the box, "box.umbrella"
for the
whiskers and "plot.symbol"
for the outliers).
Deepayan Sarkar Deepayan.Sarkar@Rproject.org
bwplot(voice.part ~ height, data = singer, xlab = "Height (inches)", panel = function(...) { panel.grid(v = 1, h = 0) panel.bwplot(...) }, par.settings = list(plot.symbol = list(pch = 4)))