Object Summaries

Usage

summary(object, ...)

summary.default   (object, ..., digits = max(3, .Options$digits -3))
summary.data.frame(object, maxsum = 7, ...)
summary.factor    (object, maxsum = 100, ...)
summary.matrix    (object, ...)

Arguments

object an object for which a summary is desired.
maxsum integer, indicating how many levels should be shown for factors.
... additional arguments affecting the summary produced.

Description

summary is a generic function used to produce result summaries of the results of various model fitting functions. The function invokes particular methods which depend on the class of the first argument.

Details

For factors, the frequency of the first maxsum - 1 most frequent levels is shown, where the less frequent levels are summarized in "(Others)" (resulting in maxsum frequencies).

The functions summary.lm and summary.glm are examples of particular methods which summarise the results produced by lm and glm.

Value

The form of the value returned by summary depends on the class of its argument. See the documentation of the particular methods for details of what is produced by that method.

See Also

anova,summary.glm,summary.lm.

Examples

options(digits=5)
data(attenu)
summary(attenu) #-> summary.data.frame(..)
summary(attenu $ station, maxsum = 20) #-> summary.factor(..)

[Package Contents]