| summary {base} | R Documentation |
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.
summary(object, ...)
summary.default (object, ..., digits = max(3, getOption("digits") -3))
summary.data.frame(object, maxsum = 7, ...)
summary.factor (object, maxsum = 100, ...)
summary.matrix (object, ...)
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. |
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.
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.
options(digits=5) data(attenu) summary(attenu) #-> summary.data.frame(..) summary(attenu $ station, maxsum = 20) #-> summary.factor(..)