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