Hypothesis tests and sure independence screening (SIS) procedure based on ball statistics, including ball divergence <doi:10.1214/17-AOS1579>, ball covariance <doi:10.1080/01621459.2018.1543600>, and ball correlation <doi:10.1080/01621459.2018.1462709>, are developed to analyze complex data in metric spaces, e.g, shape, directional, compositional and symmetric positive definite matrix data. The ball divergence and ball covariance based distribution-free tests are implemented to detecting distribution difference and association in metric spaces <doi:10.18637/jss.v097.i06>. Furthermore, several generic non-parametric feature selection procedures based on ball correlation, BCor-SIS and all of its variants, are implemented to tackle the challenge in the context of ultra high dimensional data. A fast implementation for large-scale multiple K-sample testing with ball divergence <doi:10.1002/gepi.22423> is supported, which is particularly helpful for genome-wide association study.
Version: 1.3.13 Depends: R (≥ 2.10) Imports: utils, gam, survival, mvtnorm Suggests: knitr, rmarkdown, testthat Published: 2023-02-12 DOI: 10.32614/CRAN.package.Ball Author: Jin Zhu [aut, cre], Wenliang Pan [aut], Yuan Tian [aut], Weinan Xiao [aut], Chengfeng Liu [aut], Ruihuang Liu [aut], Yue Hu [aut], Hongtu Zhu [aut], Heping Zhang [aut], Xueqin Wang [aut] Maintainer: Jin Zhu <zhuj37 at mail2.sysu.edu.cn> BugReports: https://github.com/Mamba413/Ball/issues License: GPL-3 URL: https://mamba413.github.io/Ball/, https://github.com/Mamba413/Ball NeedsCompilation: yes Citation: Ball citation info Materials: README NEWS CRAN checks: Ball results Documentation: Downloads: Reverse dependencies: Linking:Please use the canonical form https://CRAN.R-project.org/package=Ball to link to this page.
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