Adding Text to Plots in R programming – text() and mtext () Function
Text is defined as a way to describe data related to graphical representation. They work as labels to any pictorial or graphical representation. In this article, we will learn to add a text to a plot in R Programming Language by using the text() and mtext() functions.
R – text () Function
text () Function in R Programming Language is used to draw text elements to plots in Base R.
Syntax: text(x, y, labels)
- x and y: numeric values specifying the coordinates of the text to plot
- labels: the text to be written
Returns: Added text to plot
In the above example, the text is added to the plot of ‘mtcar’ dataset.
Example 2: Implementation of text() to add a mathematical annotation to a plot
In the above example, the text() function is used to add a mathematical annotation to a plot
R – mtext () Function to Add text to the margins of the graph
mtext() function in R Programming Language is used to add text to the margins of the plot.
Syntax: mtext(text, side)
- text: text to be written
- side: An integer specifying the side of the plot, such as: bottom, left, top, and right.
Returns: Added text in the margins of the graph
Here, in the above example, the side specifies the side of the plot such as the bottom, left, top, right. And in the given the side=3 i.e the top part of the plot.