Using beam and fulcrum displays to explore data

被引:12
作者
Doane, DP [1 ]
Tracy, RL
机构
[1] Oakland Univ, Dept Informat & Decis Sci, Rochester, MI 48309 USA
[2] Oakland Univ, Dept Econ, Rochester, MI 48309 USA
关键词
boxplot; dotplot; exploratory data analysis; studentized range;
D O I
10.2307/2685780
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
The beam-and-fulcrum display is a useful complement to the boxplot. It displays the range, mean, standard deviation, and studentized range. It reveals the existence of outliers and permits some assessment of shape. Embellishments to the beam-and-fulcrum diagram can show the item frequency, and/or a confidence interval for the mean. Its intuitive simplicity makes the beam-and-fulcrum an attractive tool for exploratory data analysis (EDA) and classroom instruction.
引用
收藏
页码:289 / 290
页数:2
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