Factorial 2p–qPlans Robust Against Linear and Quadratic Trends
作者:
Cuthbert Daniel,
Frank Wilcoxon,
期刊:
Technometrics
(Taylor Available online 1966)
卷期:
Volume 8,
issue 2
页码: 259-278
ISSN:0040-1706
年代: 1966
DOI:10.1080/00401706.1966.10490346
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
When the substrate of a 2n–qfactorial or fractional factorial experiment may be expected to show trends representable by linear and quadratic terms in time, then certain orderings spaced at equal time-intervals permit better estimation of the effects than do others. Some of these ordered plans are given forp–q= 2, 3, 4, 5. Simple methods are given for computing effects, trends, and efficiencies.
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