修边
样品(材料)
统计
数学
极值理论
分布(数学)
计算机科学
物理
数学分析
热力学
操作系统
出处
期刊:Encyclopedia of Biostatistics
日期:2005-02-15
被引量:40
标识
DOI:10.1002/0470011815.b2a15165
摘要
Abstract Distributions with very long tails or isolated outlying values can disturb the effectiveness of methods based on the normal distribution. Trimming involves the discarding of a proportion of sample observations at the two extremes before calculation of a mean. Winsorization involves the replacement of the discarded values by the most extreme retained values.
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