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