lawstat: Tools for Biostatistics, Public Policy, and Law

Statistical tests widely utilized in biostatistics, public policy, and law. Along with the well-known tests for equality of means and variances, randomness, measures of relative variability etc, the package contains new robust tests of symmetry, omnibus and directional tests of normality, and their graphical counterparts such as Robust QQ plot; a robust trend tests for variances etc. All implemented tests and methods are illustrated by simulations and real-life examples from legal statistics, economics, and biostatistics.

AuthorJoseph L. Gastwirth [aut], Yulia R. Gel [aut], W. L. Wallace Hui [aut], Vyacheslav Lyubchich [aut, cre], Weiwen Miao [aut], Kimihiro Noguchi [aut]
Date of publication2017-01-17 00:28:15
MaintainerVyacheslav Lyubchich <>
LicenseGPL (>= 2)

View on CRAN

Man pages

bartels.test: Ranked Version of von Neumann's Ratio Test for Randomness

bias: Prediction Errors ("Biases") of Surface Temperature Forecasts

blackhire: Hiring data for eight professions and two races

brunner.munzel.test: The Brunner-Munzel Test for Stochastic Equality

cd: Coefficient of Dispersion - A Measure of Relative Variability

cmh.test: The Cochran-Mantel-Haenszel Chi-square Test

data1963: Population data of ratio of number of senators and...

gini.index: Measures of Relative Variability - Gini Index

j.maad: MAAD estimated Robust Standard Deviation

laplace.test: Goodness-of-fit tests for the Laplace distribution

levene.test: Levene's Test of Equality of Variances

lnested.test: Test for a monotonic trend in variances

lorenz.curve: Lorenz Curve

ltrend.test: Test for a linear trend in variances

michigan: Dioxin Levels for Counties in the Upper Peninsula of Michigan

mma.test: Mudholkar-McDermott-Aumont test for ordered variances for...

neuhauser.hothorn.test: Neuhauser-Hothorn double contrast test for a monotonic trend...

nig.parameter: Generating parameters for the normal inverse Gaussian (NIG)...

popdata: Population data in 33 districts of the Tennessee Legislature...

pot: Apertures of chupa-pots from three Philippine communities

rjb.test: Test of Normailty - Robust Jarque Bera Test

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

robust.mmm.test: Robust Mudholkar-McDermott-Mudholkar test for ordered...

rqq: Test of Normality using RQQ plots

runs.test: Runs Test for Randomness

sj.test: Test of Normality - SJ Test

symmetry.test: Test of Symmetry

zuni: The Zuni data from the law case: Zuni Public School v. United...


bartels.test Man page
bias Man page
blackhire Man page
brunner.munzel.test Man page
cd Man page
cmh.test Man page
data1963 Man page
gini.index Man page
j.maad Man page
laplace.test Man page
levene.test Man page
lnested.test Man page
lorenz.curve Man page
ltrend.test Man page
michigan Man page
mma.test Man page
neuhauser.hothorn.test Man page
nig.parameter Man page
popdata Man page
pot Man page
rjb.test Man page
rlm.test Man page
robust.mmm.test Man page
rqq Man page
runs.test Man page
sj.test Man page
symmetry.test Man page
zuni Man page

Questions? Problems? Suggestions? or email at

Please suggest features or report bugs with the GitHub issue tracker.

All documentation is copyright its authors; we didn't write any of that.