lawstat (version 3.3)

rlm.test: Robust L1 Moment-Based (RLM) Goodness-of-Fit Test for the Laplace Distribution

Description

Robust test for the Laplace distribution. Two options for calculating critical values, namely, approximated with Chi-square distribution and empirical, are available.

Usage

rlm.test(x, crit.values = c("chisq.approximation", "empirical"), N = 0)

Arguments

x

a numeric vector of data values.

crit.values

a character string specifying how the critical values should be obtained: approximated by the Chi-square distribution (default) or empirically.

N

number of Monte Carlo simulations for the empirical critical values.

Value

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

statistic

the value of the test statistic.

parameter

the degrees of freedom.

p.value

the \(p\)-value of the test.

method

type of test was performed.

data.name

a character string giving the name of the data.

Details

The test is based on a joint statistic using skewness and kurtosis coefficients. In particular, RLM uses the Average Absolute Deviation from the Median (MAAD), a robust estimate of standard deviation. See Gel_2010;textuallawstat.

References

See Also

sj.test, rjb.test, rqq, jarque.bera.test

Examples

# NOT RUN {
## Laplace distributed data
x = rexp(100) - rexp(100)
rlm.test(x)
# }