A performance analysis of hotelling's χ2 control chart with supplementary runs rules

Francisco Aparisi, Charles W. Champ, J. Carlos García-Díaz

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Hotelling's control chart is widely employed to control several related characteristics of a process because of its simplicity. However, it has little power when detecting small or moderate process shifts. The use of supplementary runs rules is described in this article showing the average run length improvements achieved and the runs rules appearance frequency.

Original languageEnglish
Pages (from-to)359-368
Number of pages10
JournalQuality Engineering
Volume16
Issue number3
DOIs
StatePublished - Mar 2004

Scopus Subject Areas

  • Safety, Risk, Reliability and Quality
  • Industrial and Manufacturing Engineering

Keywords

  • ARL improvement
  • Hotelling's χ control chart
  • Multivariate control
  • Supplementary runs rules

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