summary.table
Summary of a table Object
Description
Provides a summary of an object inheriting from class table.
Usage
summary.table(object, ...)
print.summary.table(x, digits = max(1L, getOption("digits") - 3L), ...)
Arguments
| object |
an object that inherits from "table".
|
| ... |
additional arguments to pass to or from other methods.
|
| x |
an object that inherits from "summary.table".
|
| digits |
controls how many digits of a number should be printed.
|
Details
This is a method for the function summary() for objects inheriting
from class table.
See summary or summary.default for the general behavior
of this function and for the interpretation of object.
summary.table includes a Chi-square test for independence
of all the factors if the table object has more than 1 dimension.
print.summary.table is a method of generic function print
for class "summary.table".
Value
a list object of class
"summary.table" with the following components:
| n.cases |
the number of cases which is the sum of object.
|
| n.vars |
the length of dimension of object.
|
The following components are provided only when
n.vars
is greater than
1:
| statistic |
Chi-square test statistic for independence of all factors.
|
| parameter |
the degrees of freedom.
|
| approx.ok |
logical value to indicate if all the expected value greater than or equal to 5.
|
| p.value |
the p-value of Chi-square Test.
|
| call |
the "call" attribute of object present.
|
See Also
Examples
a <- sample(letters[1:3], 200, rep=TRUE)
ta <- table(a)
sta <- summary(ta)
sta
A <- sample(LETTERS[1:3], 200, rep=TRUE)
taA <- table(a, A)
summary(taA)