Industrial Engineering Journal ›› 2020, Vol. 23 ›› Issue (2): 124-132,149.doi: 10.3969/j.issn.1007-7375.2020.02.016

• practice & application • Previous Articles     Next Articles

A Distribution Free Multivariate Control Chart Based on Run Test

PEI Dezhao, LI Yanting   

  1. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2019-04-24 Published:2020-04-22

Abstract: A new distrbution free multivariate control chart based on run test is proposed. First, the shortest Hamilton path of the observations is determined by means of Kruskal algorithm, a new EWMA control chart with sliding window (HAMEWMA) is based on the number of runs of the above shortest Hamilton path. Monte Carlo simulation is used to study the control effect of HAMEWMA control chart under different conditions (dimensions, mean shift, controlled sample size and distributions of observations). Compared with some non-parametric multivariate control charts (DFEWMA, SREWMA, SSEWMA, RTC), HAMEWMA has a superior performance. The results show that: when mean shift is large, HAMEWMA has a better monitoring performance. When distributions are non-normal, HAMEWMA also performs well, even better than when the distribution is normal. Last but not the least, the HAMEWMA chart is more suitable for monitoring in high-dimensional situations

Key words: distribution-free, multivariate, non-parametric, run test, Hamilton path

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