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Space -time clustering revisited

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Show simple item record MacKenzie, Gilbert Xu, Jing 2013-01-08T15:13:21Z 2013-01-08T15:13:21Z 2009
dc.description peer-reviewed en_US
dc.description.abstract The history of space-time clustering concepts and methods are re- viewed briefly. The space-time clustering model of Ederer et al is investigated in detail. This method has been used extensively in the epidemiological literature, but we show that the distribution of main test statistic involved does not follow the distribution proposed by the authors. We note, too, that the two indices proposed are not statistically independent, leading to potential over-reporting in the epidemiological literature. We obtain the correlation between the original clustering indices and suggest a new combined test statistic which has the correct null distribution. We develop a fuller spatial model and illustrate the methodology using data from a study of the incidence of childhood leukaemia in Northern Ireland. en_US
dc.language.iso eng en_US
dc.publisher IWSM en_US
dc.relation.ispartofseries Proceedings of the 24th International Workshop on Statistical Modelling;
dc.subject space-time clustering en_US
dc.subject exact distribution en_US
dc.subject correlated outcomes en_US
dc.subject spatial data en_US
dc.subject covariance model en_US
dc.title Space -time clustering revisited en_US
dc.type info:eu-repo/semantics/conferenceObject en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.contributor.sponsor SFI en_US
dc.relation.projectid 07/MI012
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1399848

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