東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Modelling Spatial Dependence in Mult...

Timmins, Tracy.

Linked to FindBook

Google Book

Amazon

博客來

Modelling Spatial Dependence in Multivariate Regression Models of Grizzly Bear Health in Alberta, Canada.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Modelling Spatial Dependence in Multivariate Regression Models of Grizzly Bear Health in Alberta, Canada./
Author:	Timmins, Tracy.
Description:	171 p.
Notes:	Source: Masters Abstracts International, Volume: 49-03, page: 1560.
Contained By:	Masters Abstracts International49-03.
Subject:	Agriculture, Wildlife Management. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR69554
ISBN:	9780494695548

Modelling Spatial Dependence in Multivariate Regression Models of Grizzly Bear Health in Alberta, Canada.
Timmins, Tracy.

Modelling Spatial Dependence in Multivariate Regression Models of Grizzly Bear Health in Alberta, Canada. - 171 p.

Source: Masters Abstracts International, Volume: 49-03, page: 1560.

Thesis (M.Sc.)--University of Calgary (Canada), 2010.

To ensure the preservation of grizzly bears in Alberta, the effect of environmental change on grizzly bear health must be understood. This thesis investigated the relationship between grizzly bear health and environment using regression models with a focus on modelling spatial dependence. Ordinary least squares (OLS) regression models tend to misestimate the variance of estimated parameters in the presence of spatial dependence. This can lead to faulty inferences.

ISBN: 9780494695548Subjects--Topical Terms:

1670004
Agriculture, Wildlife Management.

Modelling Spatial Dependence in Multivariate Regression Models of Grizzly Bear Health in Alberta, Canada.
LDR:01963nam 2200301 4500 001 1402582
005 20111102140044.5
008 130515s2010 ||||||||||||||||| ||eng d
020 $a 9780494695548
035 $a (UMI)AAIMR69554
035 $a AAIMR69554
040 $a UMI $c UMI
100 1 $a Timmins, Tracy. $3 1681781
245 1 0 $a Modelling Spatial Dependence in Multivariate Regression Models of Grizzly Bear Health in Alberta, Canada.
300 $a 171 p.
500 $a Source: Masters Abstracts International, Volume: 49-03, page: 1560.
502 $a Thesis (M.Sc.)--University of Calgary (Canada), 2010.
520 $a To ensure the preservation of grizzly bears in Alberta, the effect of environmental change on grizzly bear health must be understood. This thesis investigated the relationship between grizzly bear health and environment using regression models with a focus on modelling spatial dependence. Ordinary least squares (OLS) regression models tend to misestimate the variance of estimated parameters in the presence of spatial dependence. This can lead to faulty inferences.
520 $a A variety of spatial neighbourhoods were created to detect spatial dependence in OLS regression models and to develop spatial autoregressive models as an alternative. It was found that significant negative spatial dependence was present in the grizzly bear data and caused the variance of parameters to be overestimated in OLS models. The use of spatial autoregressive models improved the fit of the models and increased the significance of the parameter estimates. Those spatial neighbourhoods that grouped together known grizzly bear population groups were best able to detect spatial dependence.
590 $a School code: 0026.
650 4 $a Agriculture, Wildlife Management. $3 1670004
650 4 $a Biology, Biostatistics. $3 1018416
650 4 $a Biology, Ecology. $3 1017726
650 4 $a Geography. $3 524010
650 4 $a Statistics. $3 517247
690 $a 0286
690 $a 0308
690 $a 0329
690 $a 0366
690 $a 0463
710 2 $a University of Calgary (Canada). $3 1017619
773 0 $t Masters Abstracts International $g 49-03.
790 $a 0026
791 $a M.Sc.
792 $a 2010
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR69554