V2EX quartile range

Quartile Range

释义 Definition

四分位距/四分位范围:用来描述数据离散程度的统计量,通常指上四分位数(Q3)与下四分位数(Q1)之间的差(也常被更明确地称为 interquartile range, IQR)。

发音 Pronunciation (IPA)

/kwr.tal rend/

例句 Examples

The quartile range is 12.
四分位距是 12。

Because the quartile range is small, the data are tightly clustered around the median.
由于四分位距较小,数据在中位数附近分布得很集中。

词源 Etymology

quartile 来自拉丁语词根 quartus(“第四”),表示把数据按顺序分成四等份时对应的分位点;range 表示“范围/跨度”。合起来,quartile range 指用四分位数所界定的数据跨度(常见计算为 Q3 Q1)。

相关词 Related Words

文学与著作 Literary Works

  • John W. Tukey, Exploratory Data Analysis(讨论四分位数、箱线图等稳健描述统计,常涉及四分位距/四分位范围的思想)
  • David S. Moore, George P. McCabe, Introduction to the Practice of Statistics(介绍四分位数、四分位距与箱线图等基础概念)
  • Freedman, Pisani, Purves, Statistics(在描述数据分布与离散程度的章节中常使用四分位数与四分位距相关表述)
  • Edward R. Tufte, The Visual Display of Quantitative Information(谈到箱线图等可视化方法时会涉及四分位数与其范围的概念)
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