Detecting outliers: Do not use standard deviation around the mean, use absolute deviation around the median
نویسندگان
چکیده
منابع مشابه
Background and threshold: critical comparison of methods of determination.
Different procedures to identify data outliers in geochemical data are reviewed and tested. The calculation of [mean+/-2 standard deviation (sdev)] to estimate threshold values dividing background data from anomalies, still used almost 50 years after its introduction, delivers arbitrary estimates. The boxplot, [median+/-2 median absolute deviation (MAD)] and empirical cumulative distribution fu...
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