| BestC | Find Optimal Number of Clusters for Longitudinal Data |
| CKNNRLD | Cluster-based KNN Regression for Longitudinal Data (CKNNRLD) |
| CKNNRLD.tune | Tune CKNNRLD Model with Automatic Cluster Selection |
| KNNRLD | Standard K-Nearest Neighbor Regression for Longitudinal Data |
| KNNRLD.tune | Tune k in KNNRLD using Cross-Validation |