Publication | Closed Access
A New Multivariate Control Chart for Monitoring Both Location and Dispersion
89
Citations
2
References
2005
Year
Environmental MonitoringEngineeringProcess InstrumentationProcess Mean VectorControl ChartsControl SystemsMonitoring TechnologyData ScienceSystems EngineeringProcess Covariance MatrixStatisticsProcess Measurementχ2 ChartSpatial Statistical AnalysisProcess MonitoringPerformance MonitoringProcess ControlBusinessMonitoring Both LocationMultivariate AnalysisSpatio-temporal ModelSpatial Statistics
ABSTRACT A multivariate exponentially weighted moving average single control chart is developed in this article. This chart is capable of monitoring simultaneously the process mean vector and the process covariance matrix. Our average run length comparison shows that this new chart performs better than the combination of the χ2 chart and the |S| chart when small changes in the process parameters are of interest.
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