DESIGNING 2-LEVEL FACTORIAL-EXPERIMENTS USING ORTHOGONAL ARRAYS WHEN THE RUN ORDER IS IMPORTANT

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27809

Title:	DESIGNING 2-LEVEL FACTORIAL-EXPERIMENTS USING ORTHOGONAL ARRAYS WHEN THE RUN ORDER IS IMPORTANT
Authors:	WANG,PC;JAN,HW
Contributors:	統計研究所
Keywords:	PLANS
Date:	1995
Issue Date:	2010-06-29 19:34:05 (UTC+8)
Publisher:	中央大學
Abstract:	Often industrial experiments require good fractional factorial designs to examine the effects of many factors by using only a small number of experimental runs. These experimental runs can be determined by assigning factors to the columns of appropriate orthogonal arrays. When the experimental runs are carried out in a time order sequence, the responses can depend on the run order. Frequently level changes are more expensive for some factors in the study than for others. To avoid unwanted time effects and to reduce costs, information is needed about the columns of the orthogonal arrays to assign factors to appropriate columns. In this paper, we review some useful properties of columns in the arrays and present several rules for the assignments. These are helpful in designing experiments using orthogonal arrays. For illustration, several examples are given after these rules have been presented.
Relation:	STATISTICIAN
Appears in Collections:	[Graduate Institute of Statistics] journal & Dissertation

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