ROC-Based Methods for Comparing Survival Distributions with Right, Left, and Doubly Censored Data // Implements nonparametric and semiparametric methods for comparing two survival distributions under non-proportional hazards (non-PH). The methods are based on the Receiver Operating Characteristic (ROC) curve length (Bantis et al. (2021) doi:10.1002/sim.8869) and the overlap coefficient (OVL) (Franco-Pereira et al. (2021) doi:10.1177/09622802211046386), as well as a joint ROC length- OVL-based approach. These methods do not require prior knowledge of the underlying non-PH pattern and can accommodate right, left, and doubly censored data.