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THE INEFFICIENCY OF THE LEAST SQUARES ESTIMATOR AND ITS BOUND

THE INEFFICIENCY OF THE LEAST SQUARES ESTIMATOR AND ITS BOUND
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摘要 It was suggested by Pantanen that the mean squared error may be used to measure the inefficiency of the least squares estimator. Styan[2] and Rao[3] et al. discussed this inefficiency and it's bound later. In this paper we propose a new inefficiency of the least squares estimator with the measure of generalized variance and obtain its bound. It was suggested by Pantanen that the mean squared error may be used to measure the inefficiency of the least squares estimator. Styan[2] and Rao[3] et al. discussed this inefficiency and it's bound later. In this paper we propose a new inefficiency of the least squares estimator with the measure of generalized variance and obtain its bound.
作者 杨虎
出处 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1990年第11期1087-1093,共7页 应用数学和力学(英文版)
关键词 inefficiency relative efficiency mean squared error generalized variance matrix derivative best linear unbased estimator inefficiency, relative efficiency, mean squared error, generalized variance matrix derivative, best linear unbased estimator
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