Discrimination between nested two- and three-parameter air pollutant frequency distributions
作者:
Jun Bai,
Anthony J. Jakeman,
Michael McAleer,
期刊:
Journal of Applied Statistics
(Taylor Available online 1992)
卷期:
Volume 19,
issue 4
页码: 437-453
ISSN:0266-4763
年代: 1992
DOI:10.1080/02664769200000039
出版商: Carfax Publishing Company
数据来源: Taylor
摘要:
The purpose of this paper is to consider methods which discriminate between 2- and 3-parameter nested alternatives for the gamma, Weibull and log-normal distributions, and to investigate their utility in representing frequency distributions of air pollutant measurements. Monte Carlo experiments are conducted to evaluate the likelihood ratio test, Akaike's information criterion, Schwarz's information criterion, the Chi-square test and the Kolmogorov-Smirnov test. The performance of the tests and criteria depends on the types of nested distributions under consideration, the parametric values of the parent distributions, the confidence levels used (if applicable) and the sample sizes. The practical usefulness of the techniques is illustrated by observing the errors of the models in fitting the upper percentiles of the parent distribution. Two sets of air pollution data, namely hourly pollutant observations of B-scattering and nitrogen dioxide, from an urban airshed are used to examine the similarities and differences in fitting 2- and 3-parameter distributions where historical practice suggests there is a preference for the more parsimonious model.
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