Changes in version 0.3.1 (2026-05-13) Added the logrankSIS and GendataIC functions for feature screening of ultra-high dimensional data with interval-censored responses. Changes in version 0.3.0 (2025-03-18) Revised some codes. Changes in version 0.2.1 (2024-05-30) Refined some codes and updated some methods. Changes in version 0.2.0 (2022-12-18) Updated some methods and fixed some bugs Changes in version 0.1.3 (2022-04-20) Revised some simulation and add three screening procedures (PSIS, CAS and CI-SIS) for high dimensional categorical data. Changes in version 0.1.2 (2022-01-06) Added more simulation functions and update the overall code architecture and make this package easy to use Changes in version 0.1.1 (2021-12-15) Revised some simulation functions and update some parameters Changes in version 0.1.0 (2021-12-07) First release targeting CRAN