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首页> 外文期刊>Journal of applied statistics >An efficient correction to the density-based empirical likelihood ratio goodness-of-fit test for the inverse Gaussian distribution
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An efficient correction to the density-based empirical likelihood ratio goodness-of-fit test for the inverse Gaussian distribution

机译:高斯逆分布的基于密度的经验似然比拟合优度检验的有效校正

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摘要

The inverse Gaussian (IG) distribution is widely used to model positively skewed data. An important issue is to develop a powerful goodness-of-fit test for the IG distribution. We propose and examine novel test statistics for testing the IG goodness of fit based on the density-based empirical likelihood (EL) ratio concept. To construct the test statistics, we use a new approach that employs a method of the minimization of the discrimination information loss estimator to minimize Kullback-Leibler type information. The proposed tests are shown to be consistent against wide classes of alternatives. We show that the density-based EL ratio tests are more powerful than the corresponding classical goodness-of-fit tests. The practical efficiency of the tests is illustrated by using real data examples.
机译:高斯逆(IG)分布被广泛用于对正偏数据建模。一个重要的问题是为IG分布开发功能强大的拟合优度测试。我们提出并检查了基于密度的经验似然(EL)比概念来测试IG拟合优度的新颖测试统计数据。为了构造检验统计量,我们使用一种新方法,该方法采用最小化判别信息损失估计量的方法来最小化Kullback-Leibler类型信息。所提出的测试显示出与广泛的替代方案是一致的。我们表明,基于密度的EL比测试比相应的经典拟合优度测试更强大。通过使用实际数据示例来说明测试的实际效率。

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