Spatio-temporal change of support modeling with R

Spatio-temporal change of support modeling with R
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使用 R 进行支持建模的时空变化

DOI:
10.1007/s00180-020-01029-4
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发表时间:
2021
影响因子:
1.3
通讯作者:
Wikle, Christopher K.
Wikle, Christopher K.
中科院分区:
数学4区
文献类型:
--
作者:
Raim, Andrew M.;Holan, Scott H.;Bradley, Jonathan R.;Wikle, Christopher K.

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支持度时空变化方法是为了对与观测数据不同的时空域进行统计分析而设计的。以前的工作介绍了一个简约类贝叶斯分层时空模型,我们称之为STCOS,高斯结果的情况下。应用该文献中的STCOS方法需要对时空方法和统计计算有一定的熟练程度,这对潜在用户来说可能是一个障碍。目前的工作旨在通过指导读者STCOS计算来弥合这一差距。我们关注R计算环境,因为它的流行,免费可用性和高质量的贡献包。为了方便STCOS模式的计算,引入了STCOS包。美国社区调查(ACS)是一项由美国人口普查局管理的持续调查,旨在衡量美国不同人群的关键社会经济和人口统计变量。STCOS方法提供了一种原则性的方法来计算基于模型的估计和相关的测量不确定性的ACS变量定制的地理和/或时间段。我们提出了一个详细的案例研究与ACS的数据作为一个指南,支持分析在R的变化,并作为一个基础,可以定制到其他应用程序。
Spatio-temporal change of support methods are designed for statistical analysis on spatial and temporal domains which can differ from those of the observed data. Previous work introduced a parsimonious class of Bayesian hierarchical spatio-temporal models, which we refer to as STCOS, for the case of Gaussian outcomes. Application of STCOS methodology from this literature requires a level of proficiency with spatio-temporal methods and statistical computing which may be a hurdle for potential users. The present work seeks to bridge this gap by guiding readers through STCOS computations. We focus on theRcomputing environment because of its popularity, free availability, and high quality contributed packages. Thestcospackage is introduced to facilitate computations for the STCOS model. A motivating application is the American Community Survey (ACS), an ongoing survey administered by the U.S. Census Bureau that measures key socioeconomic and demographic variables for various populations in the United States. The STCOS methodology offers a principled approach to compute model-based estimates and associated measures of uncertainty for ACS variables on customized geographies and/or time periods. We present a detailed case study with ACS data as a guide for change of support analysis inR, and as a foundation which can be customized to other applications.
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