j.maad {lawstat}

MAAD Robust Standard Deviation

Description

Compute average absolute deviation from the sample median, which is a consistent robust estimate of the population standard deviation for normally distribution data (Gastwirth 1982). NAs from the data are omitted.

Usage

j.maad(x)

Arguments

x

a numeric vector of data values.

Value

Robust standard deviation.

Author(s)

Wallace Hui, Yulia R. Gel, Joseph L. Gastwirth, Weiwen Miao

References

Gastwirth JL (1982). “Statistical properties of a measure of tax assessment uniformity.” Journal of Statistical Planning and Inference, 6(1), 1–12. doi:10.1016/0378-3758(82)90050-7.

See Also

cd, gini.index, rqq, rjb.test, sj.test

Examples

## Sample 100 observations from the standard normal distribution
x = rnorm(100)
j.maad(x)