PairedData (version 0.9.9)

winsor.cor.test: Winsorized correlation test (for paired data)

Description

Test for association between paired samples, using winsorized correlation coefficient.

Usage

winsor.cor.test(x, ...)

## S3 method for class 'default':
winsor.cor.test(x, y, tr=0.2,alternative = c("two.sided", "less", "greater"), ...)


## S3 method for class 'paired':
winsor.cor.test(x,tr=0.2,alternative = c("two.sided", "less", "greater"), ...)

Arguments

x

an object of class paired or the first variable.

y

second variable.

tr

percentage of winsorizing.

alternative

a character string specifying the alternative hypothesis, must be one of "two.sided" (default), "greater" or "less". You can specify just the initial letter.

...

further arguments to be passed to or from methods.

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.
• estimate
  the winsorized correlation.
• null.value
  the specified hypothesized value of the winsorized correlation (=0).
• alternative
  a character string describing the alternative hypothesis.
• data.name
  a character string giving the name(s) of the data.

See Also

cor.test

Examples

data(PrisonStress)
with(PrisonStress,winsor.cor.test(PSSbefore,PSSafter))
with(PrisonStress,winsor.cor.test(paired(PSSbefore,PSSafter)))