I''d like to make the following changes (differences are from R1.0.1):
boxplot.default()
1c1
< function (x, ..., range = 1.5, width = NULL, varwidth = FALSE,
---> function (x, ..., range = 1.5, width = NULL, varwidth = FALSE,
boxwex=0.8,
37c37,38
< bxp(groups, width, varwidth = varwidth, notch = notch,
---> bxp(groups, width, varwidth = varwidth, boxwex=boxwex,
> notch = notch,
bxp()
1c1,2
< function (z, notch = FALSE, width = NULL, varwidth = FALSE,
notch.frac = 0.5,
---> function (z, notch = FALSE, width = NULL, varwidth = FALSE,
> boxwex=0.8, notch.frac = 0.5,
52c53
< 0.8 * width/max(width)
---> boxwex * width/max(width)
55c56
< 0.8 * sqrt(unlist(lapply(z, "[[", "n"))/nmax)
---> boxwex * sqrt(unlist(lapply(z, "[[",
"n"))/nmax)
57,58c58,59
< 0.4
< else rep(0.8, n)
---> 0.5*boxwex
> else rep(boxwex, n)
Examples:
data(PlantGrowth)
boxplot(split(PlantGrowth$weight,PlantGrowth$group))
boxplot(split(PlantGrowth$weight,PlantGrowth$group),boxwex=0.1)
boxplot(split(PlantGrowth$weight,PlantGrowth$group),boxwex=0.8)
# This last command gives the same result as the default.
My view is that the default should be more like boxwex=0.1 .
In the default style of boxplot, the horizontal dimension
of the box carries no information.
John Maindonald.
John Maindonald email : john.maindonald at anu.edu.au
Statistical Consulting Unit, phone : (6249)3998
c/o CMA, SMS, fax : (6249)5549
John Dedman Mathematical Sciences Building
Australian National University
Canberra ACT 0200
Australia
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