Why isn’t every physicist a Bayesian?
作者:
Robert D. Cousins,
期刊:
American Journal of Physics
(AIP Available online 1995)
卷期:
Volume 63,
issue 5
页码: 398-410
ISSN:0002-9505
年代: 1995
DOI:10.1119/1.17901
出版商: American Association of Physics Teachers
关键词: DATA ANALYSIS;STATISTICS;PROBABILITY;MEASURING METHODS;ERRORS;DECISION MAKING;GAUSSIAN PROCESSES;DISTRIBUTION FUNCTIONS
数据来源: AIP
摘要:
Physicists embarking on seemingly routine error analyses are finding themselves grappling with major conceptual issues which have divided the statistics community for years. While the philosophical aspects of the debate may be endless, a practicing experimenter must choose a way to report results. The results can depend on which of the two major frameworks, classical or Bayesian, one adopts. This article reviews reasons why most data analysis in particle physics has traditionally been carried out within the classical framework, and why this will probably continue to be the case. However, Bayesian reasoning has recently made significant inroads in some published work in this field, and many other particle physicists may frequently think in a Bayesian manner without realizing it. I illustrate the issues involved with a few simple, commonly encountered examples which reveal how each framework can sometimes lead to unsatisfying results.
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