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Longitudinal data with change-points.

Zhou, Wei.

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Longitudinal data with change-points.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Longitudinal data with change-points./
作者:	Zhou, Wei.
面頁冊數:	130 p.
附註:	Source: Masters Abstracts International, Volume: 45-04, page: 1995.
Contained By:	Masters Abstracts International45-04.
標題:	Statistics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR24840
ISBN:	9780494248409

Longitudinal data with change-points.
Zhou, Wei.

Longitudinal data with change-points. - 130 p.

Source: Masters Abstracts International, Volume: 45-04, page: 1995.

Thesis (M.Sc.)--McGill University (Canada), 2006.

Longitudinal data often consist of a set of covariates and repeated measurements of an outcome over time. In clinical and health studies, a main concern is often the time that a treatment takes into effect, which is referred to as the change-point in this thesis. Modeling and measuring impact of a change in longitudinal data has not been thoroughly explored in the statistical literature. Viewing longitudinal data from the perspective of change-point analysis, we have a data structure that statisticians sometimes refer to as a multi-path change-point problem.

ISBN: 9780494248409Subjects--Topical Terms:

517247
Statistics.

Longitudinal data with change-points.
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520 $a In multipath change-point problems, it is often of interest to assess the impact of covariates on the change-point. We model the effect of covariates through hazard of the change using Cox's proportional odds model. We take a maximum quasi-likelihood (MqL) approach in estimation and statistical inference. To find the MqL estimators of the unknown parameters in our model, we have used a variant of simulated annealing. By the means of simulation we compare our model with a model suggested by Diggle et al. for analyzing a set of longitudinal observations on the body weights of 27 cows.
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