A stem-and-leaf plot(or stemplot), in statistics, is a device for presenting quantitative data in a graphical format, similar to a histogram, to assist in visualizing the shape of a distribution. They evolved from Arthur Bowley's work in the early 1900s, and are useful tools in exploratory data analysis.
基本介紹
- 中文名：Stem and Leaf Plot
- 文字類型：英語
- 又稱：stemplot
- 段數：3
Unlike histograms, stemplots retain the original data to at leasttwo significant digits, and put the data in order, thereby easing themove to order-based inference and non-parametric statistics.
A basic stemplot contains two columns separated by a vertical line. The left column contains the stems and the right column contains the leaves.
