| 指数加权移动平均控制图在实验室中的应用及与其他质控图比较 |
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| 引用本文： | 刘 浩. 指数加权移动平均控制图在实验室中的应用及与其他质控图比较[J]. 环境监测管理与技术, 2006, 18(1): 12-15 |
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| 作者姓名： | 刘 浩 |
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| 作者单位： | 中国人民大学环境学院,北京,100872 |
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| 摘 要： | 阐述了指数加权移动平均(EWMA)控制图在环境分析实验室中的应用,并与休哈特控制图和Westgard多规则对于不同偏移量的ARL值作了比较.结果表明,EWMA控制图在检验不准确度,尤其在微小偏移上的优势值得推广.
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| 关 键 词： | 指数加权移动平均控制图 休哈特控制图 Westgard多规则 比较 |
| 文章编号： | 1006-2009（2006）01-0012-04 |
| 收稿时间： | 2005-04-18 |
| 修稿时间： | 2005-04-182005-10-11 |
Application ofExponentiallyW eightedM oving Average Chartin Environmental AnalysisLaboratory and Comparison with Other ControlCharts |
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| LIU Hao. Application ofExponentiallyW eightedM oving Average Chartin Environmental AnalysisLaboratory and Comparison with Other ControlCharts[J]. The Administration and Technique of Environmental Monitoring, 2006, 18(1): 12-15 |
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| Authors: | LIU Hao |
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| Affiliation: | School of Environment and Natural Resources of Renmin University of China, Beijing 100872, China |
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| Abstract: | The application of a quality control chart based on exponentially weighted moving average(EWMA) in environmental analytical laboratory is primarily studied.The ARL value computed from this method was compared with other methods as Shewhart-x chart and Westgard algorithm.The EWMA was a good alternative to other charts for detecting inaccuracy,especially in small shifts. |
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| Keywords: | Exponentially weighted moving average(EWMA) chart Shewhart chart Westgard algorithm Comparison |
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