install.packages('coin')
"IndependenceProblem"
"IndependenceTest"
and its subclasses"IndependenceTestStatistic"
and its subclasses"IndependenceLinearStatistic"
"IndependenceTestProblem"
"PValue"
"NullDistribution"
and its subclasses"SymmetryProblem"
"VarCovar"
and its subclasses