Exact One-Sided Confidence Limit for the Ratio of Two Poisson Rates

Exact One-Sided Confidence Limit for the Ratio of Two Poisson Rates
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两个泊松率之比的精确单边置信极限

DOI:
10.1080/19466315.2016.1256829
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发表时间:
2017-04
影响因子:
1.8
通讯作者:
Guogen Shan
Guogen Shan
中科院分区:
医学4区
文献类型:
--
作者:
Min Xiao;Tao Jiang;Hua Zhang;Guogen Shan

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摘要本文研究了两个独立泊松比的精确单侧置信限。Buehler方法用于获得精确极限,该方法与现有的近似极限结合使用。方差估计恢复法(MOVER)是一种从两个独立泊松比的置信区间构造两个独立泊松比的方法。四个现有的近似限制被认为是:威尔逊区间,MOVER杰弗里斯区间,MOVER Rao评分区间,和MOVER Rao评分区间的对数尺度。准确的限值符合覆盖范围要求,在某些温和条件下尽可能小。我们的数值研究表明,使用MOVER Jeffreys区间和MOVER Rao分数区间的精确上限具有良好的性能。
ABSTRACT This article examines exact one-sided confidence limits for the ratio of two independent Poisson rates. The Buehler method is used to obtain exact limits, and this method is used in conjunction with existing approximate limits. The method of variance estimates recovery (MOVER) is a general approach to construct the ratio of two independent Poisson rates from the confidence intervals of each rate which can be obtained from commonly used methods. Four existing approximate limits are considered: the Wilson interval, the MOVER Jeffreys interval, the MOVER Rao score interval, and MOVER Rao score interval on log-scale. The exact limits respect the coverage requirement, and they are as small as possible under certain mild conditions. Our numerical studies indicate that exact upper limits using the MOVER Jeffreys interval, and the MOVER Rao score interval have good performance.
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