Journal of the Korean Data and Information Science Society
- Volume 16 Issue 2
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- Pages.467-476
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- 2005
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- 1598-9402(pISSN)
Multivariate Control Charts for Several Related Quality Characteristics
- Chang, Duk-Joon (Dept. of Statistics, Changwon National University) ;
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Shin, Jae-Kyoung
(Dept. of Statistics, Changwon National University)
- Published : 2005.05.31
Abstract
Multivariate control charts for monitoring mean vector of several related quality variables with combine-accumulate approach and accumulate-combine apprach were investigated. Shewhart chart is also proposed to compare the performances of CUSUM and EWMA charts. Numerical comparisons show that CUSUM and EWMA charts are more efficient than Shewhart chart for small or moderate shifts, and multivariate charts based on accumulate- combine approach is more efficient than corresponding multivariate charts based on combine-accumulate approach.