PairedData (version 0.5)

yuen1.test: Yuen test for one sample

Description

Robust test of location for one sample based on the trimmed mean, greatly inspired from Wilcox (2005)

Usage

yuen1.test(x,tr=.2,conf.level = 0.95,mu=0,alternative=c("two.sided", "less", "greater"))

Arguments

x

Sample

tr

Percentage of trimming

conf.level

Confidence level

mu

A priori value of the (population) trimmed mean

alternative

Alternative hypothesis

Value

• A list with class "htest" containing the following components:
• statistic
  The value of the t-statistic
• parameter
  The degrees of freedom for the t-statistic
• p.value
  The p-value for the test
• conf.int
  A confidence interval for the trimmed mean appropriate to the specified alternative hypothesis
• estimate
  The estimated trimmed mean
• null.value
  The specified hypothesized value of the (population) trimmed mean
• alternative
  A character string describing the alternative hypothesis
• method
  A character string indicating what type of test was performed
• data.name
  A character string giving the name(s) of the data

References

Wilcox, R.R. (2005). Introduction to robust estimation and hypothesis testing. Academic Press.

See Also

t.test, yuenp.test, wilcox.test

Examples

z<-rnorm(20)
x<-rnorm(20)+z
y<-rnorm(20)+z+1
yuen1.test(x-y)