boxplot.formula {base}

R Documentation

Formula Notation for Box Plots

Description

Produce box-and-whisker plot(s) of the given (grouped) values using formula notation.

Usage

## S3 method for class 'formula'
boxplot(formula, data = NULL, ..., subset)

Arguments

formula	a formula, such as y ~ x.
data	a data.frame (or list) from which the variables in formula should be taken.
...	arguments to the default boxplot method and graphical parameters may also be passed as arguments, see par.
subset	an optional vector specifying a subset of observations to be used for plotting.

Details

This is a method of the generic function boxplot. It operates by setting up the data from the formula specification, and then calling boxplot.default.

See Also

boxplot.default

Examples

data(OrchardSprays)
boxplot(decrease ~ treatment, data = OrchardSprays,
        log = "y", col="bisque")

---