# Ball 1.3.10

- Add variance (Chi-square) weight for K-sample Ball Divergence test.
- Refine distance computation

# Ball 1.3.9

*bcorsis* can conveniently analyze category variables (e.g., GWAS datasets).
- Add permutation-free method for the Ball Divergence and Ball Covariance test (both only for constant weight now).
- Add variance (chi-square) weight for Ball Divergence test.
- Fix potential bugs in R version 4.0

# Ball 1.3.8

- Improve the reproducibility and efficiency of multi-threading and change the default number of threads as the number of CPUs available.
- Improve the computational efficiency of the KBD test.

# Ball 1.3.7

- Modify ambiguous arguments of bcov.test, bd.test, bcorsis
- Modify document

# Ball 1.3.6

- Formula interface for bd.test and bcov.test
- Optimize the package dependency

# Ball 1.3.5

- Faster implementation of mutual independence test
- Multi-thread support for the test of mutual independence
- Modify document

# Ball 1.3.0

- Add a KBD statistic designed for detecting the distribution distinction when a part of group distributions are identical. (setting
*kbd.type = “maxsum”*)
- OPENMP based Multi-thread support for KBD
- Optimized OPENMP parallelism

# Ball 1.2.0

- Speed up feature screening.
- Speed up mutual independence test.
- Another K-sample test statistic (setting
*kbd.type = “max”*) is implemented. It is good at detecting the distribution distinction when a part of group distributions are identical.
- Add
*complete.info* component in the output list of *bcov.test, bd.test* and *bcorsis* such that user not need to re-run them when user want to obtain the test of result of different statistics.

# Ball 1.1.0

- Bug fix
- OPENMP based Multi-thread support for
*bd.test* and *bcov.test*
- Speed up feature screening for survival data
- Implement Angular metric for compositional data

# Ball 1.0.0