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