boxplot.matrix Draw a Boxplot for each Column (Row) of a Matrix
Description
Interpreting the columns (or rows) of a matrix as different groups, draw a boxplot for each.
Usage
## S3 method for class 'matrix'
boxplot(x, use.cols = TRUE, ...)
Arguments
x |
a numeric matrix. |
use.cols |
logical indicating if columns (by default) or rows ( |
... |
Further arguments to |
Value
A list as for boxplot.
Author(s)
Martin Maechler, 1995, for S+, then R package sfsmisc.
See Also
boxplot.default which already works nowadays with data.frames; boxplot.formula, plot.factor which work with (the more general concept) of a grouping factor.
Examples
## Very similar to the example in ?boxplot
mat <- cbind(Uni05 = (1:100)/21, Norm = rnorm(100),
T5 = rt(100, df = 5), Gam2 = rgamma(100, shape = 2))
boxplot(mat, main = "boxplot.matrix(...., main = ...)",
notch = TRUE, col = 1:4)
Copyright (©) 1999–2012 R Foundation for Statistical Computing.
Licensed under the GNU General Public License.