CondIndTest             Wrapper function for conditional independence
                        tests.
InvariantConditionalQuantilePrediction
                        Invariant conditional quantile prediction.
InvariantEnvironmentPrediction
                        Invariant environment prediction.
InvariantResidualDistributionTest
                        Invariant residual distribution test.
InvariantTargetPrediction
                        Invariant target prediction.
KCI                     Kernel conditional independence test.
ResidualPredictionTest
                        Residual prediction test.
fTestTargetY            F-test for a nested model comparison.
fishersTestExceedance   Fishers test to test whether the exceedance of
                        the conditional quantiles is independent of the
                        categorical variable E.
ksResidualDistributions
                        Kolmogorov-Smirnov test to compare residual
                        distributions
leveneAndWilcoxResidualDistributions
                        Levene and wilcoxon test to compare first and
                        second moments of residual distributions
propTestTargetE         Proportion test to compare two
                        misclassification rates.
wilcoxTestTargetY       Wilcoxon test to compare two mean squared error
                        rates.
