Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1023/A:1020910605990 |
Zero-inflated models with application to spatial count data | |
Agarwal, DK; Gelfand, AE; Citron-Pousty, S | |
通讯作者 | Agarwal, DK |
来源期刊 | ENVIRONMENTAL AND ECOLOGICAL STATISTICS
![]() |
ISSN | 1352-8505 |
出版年 | 2002 |
卷号 | 9期号:4页码:341-355 |
英文摘要 | Count data arises in many contexts. Here our concern is with spatial data which exhibit an excessive number of zeros. Using the class of zero-inflated count models provides a flexible way to address this problem. Available covariate information suggests formulation of such modeling within a regression framework. We employ zero-inflated Poisson regression models. Spatial association is introduced through suitable random effects yielding a hierarchical model. We propose fitting this model within a Bayesian framework considering issues of posterior propriety, informative prior specification and well-behaved simulation based model fitting. Finally, we illustrate the model fitting with a data set involving counts of isopod nest burrows for 1649 pixels over a portion of the Negev desert in Israel. |
英文关键词 | conditionally autoregressive prior Langevin diffusions latent variables posterior propriety |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000179090800002 |
WOS关键词 | ISOPOD HEMILEPISTUS-REAUMURI ; REGRESSION ; SYSTEMS |
WOS类目 | Environmental Sciences ; Mathematics, Interdisciplinary Applications ; Statistics & Probability |
WOS研究方向 | Environmental Sciences & Ecology ; Mathematics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/142525 |
作者单位 | (1)AT&T Labs Res, Shannon Res Labs, Florham Pk, NJ 07932 USA;(2)Duke Univ, Inst Stat & Decis Sci, Durham, NC 27708 USA;(3)Univ Connecticut, Dept Ecol & Evolutionary Biol, Storrs, CT 06269 USA |
推荐引用方式 GB/T 7714 | Agarwal, DK,Gelfand, AE,Citron-Pousty, S. Zero-inflated models with application to spatial count data[J],2002,9(4):341-355. |
APA | Agarwal, DK,Gelfand, AE,&Citron-Pousty, S.(2002).Zero-inflated models with application to spatial count data.ENVIRONMENTAL AND ECOLOGICAL STATISTICS,9(4),341-355. |
MLA | Agarwal, DK,et al."Zero-inflated models with application to spatial count data".ENVIRONMENTAL AND ECOLOGICAL STATISTICS 9.4(2002):341-355. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。