A comparison of some robust bivariate control charts for individual observations Article

cited authors

  • Abu-Shawiesh, MOA; George, F; Kibria, BMG

abstract

  • This paper proposed and considered some bivariate control charts to monitor individual observations from a statistical process control. Usual control charts which use mean and variance-covariance estimators are sensitive to outliers. We consider the following robust alternatives to the classical Hoteling's T2: T2MedMAD, T2MCD, T2MVE A simulation study has been conducted to compare the performance of these control charts. Two real life data are analyzed to illustrate the application of these robust alternatives.

publication date

  • January 1, 2014

start page

  • 183

end page

  • 196

volume

  • 8

issue

  • 2