References
- Lowry , C. A. , Woodall , W. H. , Champ , C. W. and Rigdon , S. E. 1992 . A multivariate exponentially weighted moving average control chart . Technometrics , 34 ( 1 ) : 46 – 53 .
- Montgomery , D. C. 2001 . Introduction to Statistical Quality Control , 4th ed. New York : Wiley and Sons .
- Prabhu , S. S. and Runger , G. C. 1997 . Designing a multivariate EWMA control chart . J. Qual. Technol. , 29 ( 1 ) : 8 – 15 .
- Runger , G. C. and Prabhu , S. S. 1996 . A Markov chain model for the multivariate exponentially weighted moving averages control chart . J. Am. Statist. Assoc. , 91 ( 436 ) : 1701 – 1706 .