Stem and Leaf Plot in R

A Stem and Leaf Diagram, also called as Stem and Leaf plot, is a special table where each numeric value is split into a stem (First digit(s) ) and a leaf (last Digit). For example, 57 will split into 5 as stem and 7 as leaf. In this article we will show you, How to make a Stem and Leaf plot in R Programming language with example.

Syntax of a Stem and Leaf Plot in R

The basic syntax to draw the Stem and Leaf chart in R Programming is as shown below

Following are the list of arguments supported by the Stem and Leaf chart in R programming language:

• x: Please specify the data on which you want to draw the Stem and Leaf Plot. Here, you have to use the numeric vector, or a list containing numeric vector.
• scale: Please specify the scale you want to use for your plot.
• width: It is optional but you can use this to specify the desired width of a plot. By default it is 80
• atom: It is a tolerance

Before we get into the example, let us see the diagrammatic representation of Stem and Leaf plot. From the below screenshot you can see that, first we declared a variables 10, 15, 22, 25, 28, 23, 29, 31, 36, 45, 48. From those values, First digit is assigned to stem and last Digit is leaf.

Create a Stem and Leaf Plot in R Programming

In this example we will show you, How to make a Stem and Leaf plot using the ChickWeight data set, which is provided by the R Studio. If your requirement is to import data from external files then, I suggest you to refer R Read CSV article to understand the importing of csv file.

R CODE

OUTPUT

ANALYSIS

ChickWeight data set will return the output as a List. So, we are using the $ to extract the data from List.

From the above screenshot you can see that, ChickWeight data set has numbers like: 25, 29, 29, ……., 341, 361, 363

Use Scale for Stem and Leaf Plot in R

In this example we will show you, How to use the scale argument inside the stem function.

R CODE

OUTPUT

Change width of a Stem and Leaf Plot

In this example we will show you, How to change the width of a Stem and Leaf chart in R Programming.

R CODE

OUTPUT

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