Testing normality of data on a multivariate grid
Testing normality of data on a multivariate grid
复制标题
测试多元网格上数据的正态性
DOI:
10.1016/j.jmva.2020.104640
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发表时间:
2020
影响因子:
1.6
通讯作者:
Wang, Shixuan
中科院分区:
文献类型:
--
作者:
Horváth, Lajos;Kokoszka, Piotr;Wang, Shixuan
We propose a significance test to determine if data on a regular d-dimensional grid can be assumed to be a realization of Gaussian process. By accounting for the spatial dependence of the observations, we derive statistics analogous to sample skewness and kurtosis. We show that the sum of squares of these two statistics converges to a chi-square distribution with two degrees of freedom. This leads to a readily applicable test. We examine two variants of the test, which are specified by two ways the spatial dependence is estimated. We provide a careful theoretical analysis, which justifies the validity of the test for a broad class of stationary random fields. A simulation study compares several implementations. While some implementations perform slightly better than others, all of them exhibit very good size control and high power, even in relatively small samples. An application to a comprehensive data set of sea surface temperatures further illustrates the usefulness of the test.
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DOI:
10.1016/j.csda.2018.07.004
发表时间:
2019-03
期刊:
Comput. Stat. Data Anal.
影响因子:
--
作者:
J. French;P. Kokoszka;Stilian A. Stoev;Lauren Hall
通讯作者:
J. French;P. Kokoszka;Stilian A. Stoev;Lauren Hall
DOI:
10.1017/cbo9781139248891
发表时间:
2018-03
期刊:
--
影响因子:
--
作者:
A. Azzalini;A. Capitanio
通讯作者:
A. Azzalini;A. Capitanio
影响因子:
4.5
作者:
Ming;Shao;Ching
通讯作者:
Ching
影响因子:
1.5
作者:
Lahiri S
通讯作者:
Lahiri S
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
Annabel Prause;A. Steland
通讯作者:
A. Steland