# K-statistic
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> Source: https://en.wikipedia.org/wiki/K-statistic
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In [statistics](/source/statistics), a '''k-statistic''' is a minimum-variance [unbiased estimator](/source/unbiased_estimator) of a [cumulant](/source/cumulant).[{{Cite journal |last=McHugh |first=Mary L. |date=2012-10-15 |title=Interrater reliability: the kappa statistic |journal=Biochemia Medica |volume=22 |issue=3 |pages=276–282 |doi=10.11613/BM.2012.031 |issn=1330-0962 |pmc=3900052 |pmid=23092060}}][{{Citation |last=Xia |first=Yinglin |title=Chapter Eleven - Correlation and association analyses in microbiome study integrating multiomics in health and disease |date=2020-01-01 |url=https://www.sciencedirect.com/science/article/pii/S1877117320300478 |journal=Progress in Molecular Biology and Translational Science |volume=171 |pages=309–491 |editor-last=Sun |editor-first=Jun |access-date=2023-06-14 |series=The Microbiome in Health and Disease |publisher=Academic Press |doi=10.1016/bs.pmbts.2020.04.003 |pmid=32475527 |language=en|url-access=subscription }}]
== References ==
{{reflist}}
== External links ==
* [http://mathworld.wolfram.com/k-Statistic.html k-Statistic] on [Wolfram MathWorld](/source/Wolfram_MathWorld)
* [https://cran.r-project.org/web/packages/kStatistics/index.html kStatistics], an [R package](/source/R_package) for calculating k-statistics
Category:Estimator
{{statistics-stub}}
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Adapted from the Wikipedia article [K-statistic](https://en.wikipedia.org/wiki/K-statistic) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/K-statistic?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.