Model-Free Sure Independent Screening Procedures R package MFSIS version 0.3.1 An implementation of popular screening methods that are commonly employed in ultra-high and high dimensional data. Through this publicly available package, we provide a unified framework to carry out model-free screening procedures including SIS (Fan and Lv (2008) <doi:10.1111/j.1467-9868.2008.00674.x>), SIRS(Zhu et al. (2011)<doi:10.1198/jasa.2011.tm10563>), DC-SIS (Li et al. (2012) <doi:10.1080/01621459.2012.695654>), MDC-SIS(Shao and Zhang (2014) <doi:10.1080/01621459.2014.887012>), Bcor-SIS (Pan et al. (2019) <doi:10.1080/01621459.2018.1462709>), PC-Screen (Liu et al. (2020) <doi:10.1080/01621459.2020.1783274>), WLS (Zhong et al.(2021) <doi:10.1080/01621459.2021.1918554>), Kfilter (Mai and Zou (2015) <doi:10.1214/14-AOS1303>), MVSIS (Cui et al. (2015) <doi:10.1080/01621459.2014.920256>), PSIS (Pan et al. (2016) <doi:10.1080/01621459.2014.998760>), CAS (Xie et al. (2020) <doi:10.1080/01621459.2019.1573734>), CI-SIS (Cheng and Wang. (2023) <doi:10.1016/j.cmpb.2022.107269>), CSIS (Cheng et al. (2024) <doi:10.1007/s00180-023-01399-5>) and Log-rank SIS. Software Imports: survival, MASS, Ball, reticulate, stats, crayon, cli, dr, foreach, parallel, doParallel, fs Suggests: knitr, utils, pkgdown Xuewei Cheng <xwcheng@hunnu.edu.cn> Comprehensive R Archive Network (CRAN) Xuewei Cheng [aut, cre], Hong Wang [aut], Liping Zhu [aut], Wei Zhong [aut], Hanpu Zhou [aut] GPL (>= 2) 2026-05-13 application/tgz https://CRAN.R-project.org/package=MFSIS doi:10.32614/CRAN.package.MFSIS en-US