Hypothesis tests and sure independence screening (SIS) procedure based on ball statistics, including ball divergence, ball covariance, and ball correlation, are developed to analyze complex data. The ball divergence and ball covariance based distributionfree tests are implemented to examine equality of multivariate distributions and independence between random vectors of arbitrary dimensions. Furthermore, a generic nonparametric SIS procedure based on ball correlation and all of its variants are implemented to tackle the challenge in the context of ultra high dimensional data.
Package details 


Author  XueQin Wang, WenLiang Pan, HePing Zhang, Hongtu Zhu, Yuan Tian, WeiNan Xiao, ChengFeng Liu, Jin Zhu 
Date of publication  20180103 18:25:13 UTC 
Maintainer  Jin Zhu <[email protected]> 
License  GPL3 
Version  1.0.0 
URL  https://github.com/Mamba413/Ball 
Package repository  View on CRAN 
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