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NAG製品を使用した研究に関する各論文の概要

Keyword: ARMA, autoregressive moving average models, maximum likelihood, regression models, total ozone

論文タイトル Relationship Between Missing Data Likelihoods and Complete Data Restricted Likelihoods for Regression Time Series Models: An Application to Total Ozone Data
出版情報 Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 45, No. 1 (1996)
著者 Sabyasachi Basu and Gregory C. Reinsel
概要(abstract) "The relationship is shown between the likelihood of autoregressive moving average (ARMA) models, or the restricted likelihood of a regression model with ARMA errors with possibly non-consecutive data, and the restricted likelihood when the missing values are filled in with Os and regression terms are added to account for the missing values. The latter method is also useful to model additive outliers in a time series setting. This relationship is then used to fit the models with standard computer packages and the results are applied to the analysis of total ozone time series data that involve missing values."
使用されているNAG製品 全体のオゾンデータの分析にNAGのサブルーチンが使用されている。
REML 推定法によるARMAノイズモデルを含む回帰モデルのフィッティングにNAG Fortran Library のルーチン G13BEF が使用されている。

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