wilcox.test {PairedData}

Wilcoxon's signed rank test for paired data

Description

A method designed for objects of class paired.

Usage

## S3 method for class 'paired'
wilcox.test(x, ...)

Arguments

x

An object of class paired.

...

further arguments to be passed to or from methods.

Value

A list with class "htest" containing the following components:

statistic

the value of V statistic.

parameter

the parameter(s) for the exact distribution of the test statistic.

p.value

the p-value for the test.

null.value

the true location shift mu.

alternative

a character string describing the alternative hypothesis.

method

a character string indicating what type of test was performed (always paired here)

data.name

a character string giving the name(s) of the data.

conf.int

a confidence interval for the location parameter. (Only present if argument conf.int = TRUE.)

estimate

an estimate of the location parameter. (Only present if argument conf.int = TRUE.)

Author(s)

Stephane Champely

See Also

yuen.test

Examples

data(PrisonStress)
with(PrisonStress,wilcox.test(PSSbefore,PSSafter))
with(PrisonStress,wilcox.test(PSSbefore,PSSafter,paired=TRUE))
with(PrisonStress,wilcox.test(paired(PSSbefore,PSSafter)))