Robust Control Charts for Time Series Data

C. Croux, S. Gelper, K. Mahieu

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Abstract

This article presents a control chart for time series data, based on the one-step- ahead forecast errors of the Holt-Winters forecasting method. We use robust techniques to prevent that outliers affect the estimation of the control limits of the chart. Moreover, robustness is important to maintain the reliability of the control chart after the occurrence of alarm observations. The properties of the new control chart are examined in a simulation study and on a real data example.
Original languageEnglish
Place of PublicationTilburg
PublisherEconometrics
Number of pages16
Volume2010-107
Publication statusPublished - 2010

Publication series

NameCentER Discussion Paper
Volume2010-107

Keywords

  • Control chart
  • Holt-Winters
  • Non-stationary time series
  • Out- lier detection
  • Robustness
  • Statistical process control

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    Croux, C., Gelper, S., & Mahieu, K. (2010). Robust Control Charts for Time Series Data. (CentER Discussion Paper; Vol. 2010-107). Econometrics.