Process / pipelineStatistical process control
MEWMA控制图 — 多元指数加权移动平均控制图
多元指数加权移动平均（MEWMA）控制图是一种统计过程监控方法，旨在检测多元过程均值向量中微小且持续的偏移。该方法由Lowry、Woodall、Champ和Rigdon于1992年提出，它通过计算连续测量向量的指数加权移动平均，并将Hotelling型二次形式与由目标平均运行长度确定的控制限进行比较，从而将单变量EWMA控制图扩展到p维观测向量。
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来源
- Lowry, C. A., Woodall, W. H., Champ, C. W., & Rigdon, S. E. (1992). A multivariate exponentially weighted moving average control chart. Technometrics, 34(1), 46–53. DOI: 10.2307/1269551 ↗
如何引用本页
ScholarGate. (2026, June 2). Multivariate EWMA Control Chart. ScholarGate. https://scholargate.app/zh/statistics/mewma-chart
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