landmaRk - Time-to-Event Landmark Analysis using an Array of Longitudinal and Survival Sub-Models

Provides a modular end-to-end framework for dynamic risk prediction based on time-to-event and longitudinal data. This allows flexible specifications for the longitudinal and survival sub-models. The 'landmaRk' package enables reproducible benchmarks of different model choices, including cross-validation to assess out-of-sample predictive performance. Methods are described in Velasco-Pardo, et al. (2026) <arXiv:2606.24678>.