Tables

Distribution, Reference Tool

What is it?

Also known as a Stemplot, Stem & Leaf Display.
Stem & Leaf Plots are a way of organising data via their place value to show the distribution of data. Place values are shown ascending downwards on a “stem” column, typically but not always in tens. Data that is within each place value is listed and extends sideways from it as a “leaf”.

As well as giving readers a quick overview of the data distribution, Stem & Leaf Plots are useful for highlighting outliers and finding the mode. Displaying the data (mostly) raw makes Stem & Leaf Plots useful as a reference tool, such as a public transport schedule. If you have two datasets, then a back-to-back or double Stem & Leaf Plot can be used to compare the two datasets together.
In terms of weaknesses, Stem & Leaf Plots are limited in the size of the dataset they can handle. Too little and they become pointless, too much and the chart becomes over-cluttered.

When to use it?

Tools to create the Charts

Code-based:
https://mbostock.github.io/protovis/ex/stem-and-leaf.html

Webapp:
https://www.calculatorsoup.com/calculators/statistics/stemleaf.phphttps://www.easycalculation.com/statistics/stem-leaf-plot.php

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