Scale ParameterShrinkage estimatorIn this article, we propose a shrinkage estimator for the scale parameter of the Gamma distribution when the prior information is available and compare it with minimum mean square error (MMSE) of its usual estimator in the sense of efficiency. The proposed shrinkage...
Scale parameter 尺度参数 In probability theory and statistics, ascale parameteris a special kind of numerical parameter of a parametric family of probability distributions. The larger the scale parameter, the more spread out the distribution. If a family of probability distributions is such that there...
Z.M.Chen,J.Mi.Statistical estimation for the scale parameter of the gamma distribution based on grouped data. Commun.Statist-Theory meth . 1998Z. Chen, and J. Mi. Statistical estimation for the scale parameter of the gamma distribution based on grouped data, Communication in Statistics, Theory...
The gamma distribution is usually parameterized in terms of a scale parameter θ Special cases of distributions where the scale parameter equals unity may be called "standard" under certain conditions. For example, if the location parameter equals zero and the scale parameter equals one, the normal...
scale parameternormal distributiongamma distributionIt is common in practice that the Shewhart lt;IMG SRC=../jas/jas6122.gifgt; chart usually supplemented with interpretation rules in order to detect the small shifts in the process mean. In this study the effect of scale parameters in the ...
均值和韦伯分布scale:从概率论和统计学角度看,Weibull Distribution是连续性的概率分布,其概率密度为: 均值和韦伯分布scale:其中,x是随机变量,λ>0是比例参数(scale parameter),k>0是形状参数(shape parameter)。显然,它的累积分布函数是扩展的指数分布函数,而且,Weibull distribution与很多分布都有关系。如,当k=1,...
This paper is concerned with admissible and minimax estimation of scale parameter of a gamma distribution under the entropy loss function, when it is know... NE Mehrnaz,N Nader - 《Journal of Mathematical Extension》 被引量: 0发表: 2009年 Esti-mation of Non-Centrality Parameter of : a Chi...
Estimation of Exponential Distribution Parameter under Entropy Loss Function Based on Type Ⅱ Censoring Based on the first r order statistics X(1),... ,X(r), we consider the estimation of exponential distribtion parameter under entropy loss function. We prove that the minimum risk equivariant is...
This paper argues that the half-Cauchy distribution should replace the inverse-Gamma distribution as a default prior for a top-level scale parameter in Bayesian hierarchical models, at least for cases where a proper prior is necessary. Our arguments involve a blend of Bayesian and frequentist ...
2) scale parameter λ 尺度参数λ 1. Bayesian estimations are given respectively to the shape parameter k and the scale parameter λ under quadratic loss function. 讨论部件寿命服从Gamma分布,并在形状参数k和尺度参数λ都未知的情况下,分别给出参数k和λ在平方损失函数下的Bayes估计。3) Scale ...