[aut],
Hien Nguyen [aut],
Ruby Sharma [aut],
Sajal Kumar [aut],
Joe Song [aut,
cre]Statistical hypothesis testing methods for inferring model-free functional dependency using asymptotic chi-squared or exact distributions. Functional test statistics are asymmetric and functionally optimal, unique from other related statistics. Tests in this package reveal evidence for causality based on the causality-by-functionality principle. They include asymptotic functional chi-squared tests (Zhang & Song 2013) <arXiv:1311.2707> and an exact functional test (Zhong & Song 2019) <doi:10.1109/TCBB.2018.2809743>. The normalized functional chi-squared test was used by Best Performer 'NMSUSongLab' in HPN-DREAM (DREAM8) Breast Cancer Network Inference Challenges (Hill et al 2016) <doi:10.1038/nmeth.3773>. A function index (Zhong & Song 2019) <doi:10.1186/s12920-019-0565-9> (Kumar et al 2018) <doi:10.1109/BIBM.2018.8621502> derived from the functional test statistic offers a new effect size measure for the strength of functional dependency, a better alternative to conditional entropy in many aspects. For continuous data, these tests offer an advantage over regression analysis when a parametric functional form cannot be assumed; for categorical data, they provide a novel means to assess directional dependency not possible with symmetrical Pearson's chi-squared or Fisher's exact tests.
| Version: | 2.5.1 |
| Depends: | R (≥ 3.0.0) |
| Imports: | Rcpp, Rdpack (≥ 0.6-1), stats |
| LinkingTo: | BH, Rcpp |
| Suggests: | Ckmeans.1d.dp, DiffXTables, GridOnClusters, testthat, knitr, rmarkdown |
| Published: | 2020-06-14 |
| Author: | Yang Zhang [aut],
Hua Zhong [aut],
Hien Nguyen [aut],
Ruby Sharma [aut],
Sajal Kumar [aut],
Joe Song [aut,
cre] |
| Maintainer: | Joe Song <joemsong at cs.nmsu.edu> |
| License: | LGPL (≥ 3) |
| URL: | https://www.cs.nmsu.edu/~joemsong/publications |
| NeedsCompilation: | yes |
| Citation: | FunChisq citation info |
| Materials: | README NEWS |
| CRAN checks: | FunChisq results |
| Reference manual: | FunChisq.pdf |
| Vignettes: |
Using the exact functional test Measuring functional dependency model-free Examples of discrete patterns |
| Package source: | FunChisq_2.5.1.tar.gz |
| Windows binaries: | r-devel: FunChisq_2.5.1.zip, r-release: FunChisq_2.5.1.zip, r-oldrel: FunChisq_2.5.1.zip |
| macOS binaries: | r-release: FunChisq_2.5.1.tgz, r-oldrel: FunChisq_2.5.1.tgz |
| Old sources: | FunChisq archive |
| Reverse suggests: | DiffXTables, GridOnClusters |
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