Journal of Quality Technology · 1991 · 86 citations · 16 references
ComputingQuality ManagementProcess ControlStatisticsTime Series AnalysisControl ChartsOutlier DetectionOutlier HandlingOutlier TreatmentStatistical Process ControlControl ChartingExponential Weighted Moving AverageExponentially Weighted Moving Average ChartsNonparametric Control ChartsNonparametric EstimationNonparametric RegressionProcess Mean ShiftRanking Charts
A control chart technique that considers exponentially weighted moving averages (EWMA) of the ranks of the observations is proposed. This nonparametric technique is outlier-resistant and performs well if one is concerned about sudden shifts in the process mean. The procedure is illustrated on a data set taken from the literature.
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Control Chart Tests Based on Geometric Moving Averages
S. W. Roberts · Technometrics · 1959 · 1.5K citations
Control Chart Tests Based on Geometric Moving Averages
S. W. Roberts · Technometrics · 2000 · 1.3K citations