Usage
Boxplot(y, ...)
## S3 method for class 'default':
Boxplot(y, g, labels, id.method = c("y", "identify", "none"),
id.n=10, xlab, ylab, ...)
## S3 method for class 'formula':
Boxplot(formula, data = NULL, subset, na.action = NULL, labels.,
id.method = c("y", "identify", "none"), xlab, ylab, ...)Arguments
y
a numeric variable for which the boxplot is to be constructed.
g
a grouping variable, usually a factor, for constructing parallel boxplots.
labels, labels.
point labels; if not specified, Boxplot will use the row names of the data
argument, if one is given, or observation numbers.
id.method
if "y" (the default), all outlying points are labeled; if "identify", points
may be labeled interactive; if "none", no point identification is performed.
id.n
up to id.n high outliers and low outliers will be identified in each group, (default, 10).
xlab, ylab
text labels for the horizontal and vertical axes; if missing, Boxplot will use the
variable names.
formula
a `model' formula, of the form ~ y to produce a boxplot for the variable y, or
of the form y ~ g, y ~ g1*g2*..., or y ~ g1 + g2 + ... to
produce parallel boxplots for y
data, subset, na.action
as for statistical modeling functions (see, e.g., lm). ...
further arguments, such as at, to be passed to boxplot.