AL_RNAmf                Active Learning for Recursive Non-Additive
                        Emulator
NestedX                 Constructing nested design sets for the RNA
                        model.
RNAmf                   Fitting the Recursive Non-Additive model with
                        multiple fidelity levels
closed_form_RNA         Closed-form prediction for RNAmf model
imputer_RNA             Imputation step in stochastic EM for the
                        non-nested RNA Model
predict.RNAmf           prediction of the RNAmf emulator with multiple
                        fidelity levels.
