Outliers detecting of dam observation data is a basic work for dam observation data analysis.

观测精度历来是大坝观测中最需要关注的要素之一。

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This paper discusses four basic approaches of detecting outliers, summarizes their main ideas and evaluates their strengths and weaknesses.

本文从探测奇异值的一般方法入手，探讨了四种典型方法的基本思想以及优缺点。

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Method According to the theory of detecting outliers in linear regression analysis, the measured value of the samples in quality control was processed by EXCEL.

方法根据直线回归分析中“诊断异常点”的理论，通过计算机EXCEL软件对实验所获得的质控品测定值进行统计学处理。

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