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Astrostatistics is a discipline which spans
astrophysics Astrophysics is a science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena. As one of the founders of the discipline said, Astrophysics "seeks to ascertain the nature of the he ...
, statistical analysis and data mining. Astrostatistics and Astroinformatics Portal
/ref> It is used to process the vast amount of data produced by automated scanning of the cosmos, to characterize complex datasets, and to link
astronomical data Astronomy () is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies ...
to astrophysical theory. Many branches of statistics are involved in astronomical analysis including nonparametrics,
multivariate regression The general linear model or general multivariate regression model is a compact way of simultaneously writing several multiple linear regression models. In that sense it is not a separate statistical linear model. The various multiple linear regre ...
and multivariate classification,
time series analysis In mathematics, a time series is a series of data points indexed (or listed or graphed) in time order. Most commonly, a time series is a sequence taken at successive equally spaced points in time. Thus it is a sequence of discrete-time data. Ex ...
, and especially
Bayesian inference Bayesian inference is a method of statistical inference in which Bayes' theorem is used to update the probability for a hypothesis as more evidence or information becomes available. Bayesian inference is an important technique in statistics, and ...
. The field is closely related to astroinformatics.


Professional association

Practitioners are represented by the
International Astrostatistics Association The International Astrostatistics Association (IAA) is a non-profit professional organization for astrostatisticians. Astrostatistics as a discipline is composed of astrophysicists, statisticians, and those in computer information sciences who ha ...
affiliated with the International Statistical Institute, the
International Astronomical Union The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach ...
Working Group in Astrostatistics and Astroinformatics, the
American Astronomical Society The American Astronomical Society (AAS, sometimes spoken as "double-A-S") is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC. The primary objective of the AAS is to promote the adv ...
Working Group in Astroinformatics and Astrostatistics, the
American Statistical Association The American Statistical Association (ASA) is the main professional organization for statisticians and related professionals in the United States. It was founded in Boston, Massachusetts on November 27, 1839, and is the second oldest continuousl ...
Interest Group in Astrostatistics, and th
Cosmostatistics Initiative
All of these organizations participate in th
Astrostatistics and Astroinformatics Portal
Web site.


References

Astrophysics Applied statistics Data mining Machine learning {{Statistics-stub