Multivariate Quality Control Using Finite Intersection Tests
作者:
TimmNeil H.,
期刊:
Journal of Quality Technology
(Taylor Available online 1996)
卷期:
Volume 28,
issue 2
页码: 233-243
ISSN:0022-4065
年代: 1996
DOI:10.1080/00224065.1996.11979663
出版商: Taylor&Francis
关键词: Hotelling's T2;Multivariate Control Charts;T2Control Charts
数据来源: Taylor
摘要:
Multivariate quality control problems involve the evaluation of a process based on the simultaneous behavior ofpvariables. Most multivariate quality control procedures evaluate the in-control or out-of-control condition based upon an overall statistic, like Hotelling'sT2. AlthoughT2is optimal for finding a general shift in the mean vector, it is not optimal for shifts that occur for some subset of variables, a variable at a time. When this occurs, the optimal procedure is to utilize a Finite Intersection Test (FIT). In this article we show how to use a single step and stepdown FIT to evaluate whether a multivariate process is in control or out of control.
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