summary.factor
Use summary() on a factor Object
Description
This is an S3 method for the function summary for objects inheriting from class factor.
Usage
summary.factor(object, maxsum = 100, ...)
Arguments
| object |
An object inherits from "factor".
|
| maxsum |
the maximal number of levels to be shown in summary result.
The first maxsum-1 levels are shown and the rest of levels
will be combined(sum of the number of observations) in one cell
named "(Other)". See example as below.
|
| ... |
additional arguments to pass to or from other methods.
|
Details
This is a method for the function summary() for objects inheriting from class factor.
See summary or summary.default for the general behavior of this function
and for the interpretation of object.
Examples
color <- c("red", "red", "red", "green", "grey", "white", "green", "blue")
colors <- factor(color, c("red", "green", "blue", "grey", "black", "white"))
summary(colors)
# red green blue grey black white
# 3 2 1 1 0 1
summary(colors, maxsum = 4)
# red green blue (Other)
# 3 2 1 2