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Add Titles to a Graph in R Programming ? title() Function title() function in R Language is used to add main title and axis title to a graph. This function can also be used to modify the existing titles. Syntax: title(main = NULL, sub = NULL, xlab = NULL, ylab = NULL, ?)

The text() function allows us to put text on the plot where we want it. An obvious use is to label a line or group of points. This would give us two labels in the upper right corner of the plot, which with appropriate arrows could be used in place of a legend. Note that vectors were supplied as the coordinates.

How to add text to a plot. text() is the main function we can use to add text to a plot. We start by adding the string ?function? with fontsize=12 to the location (10, 20). By default, the location is given in data coordinates.

Following steps were followed: Define the x-axis and corresponding y-axis values as lists. Plot them on canvas using .plot() function. Give a name to x-axis and y-axis using .xlabel() and .ylabel() functions. Give a title to your plot using .title() function. Finally, to view your plot, we use .show() function.

Mtext() function in R Programming Language is used to add text to the margins of the plot. Parameters: text: text to be written. side: An integer specifying the side of the plot, such as: bottom, left, top, and right.

Add one annotation Once you have created the dataset and plotted the scatterplot with the previous code, you can use text() function of matplotlib to add annotation. The following parameters should be provided: x : the position to place the text in x axis. y : the position to place the text in y axis.

In order to add text annotations to a matplotlib chart you will need to set at least, the text, the coordinates of the plot to be highlighted with an arrow ( xy ), the coordinates of the text ( xytext ) and the properties of the arrow ( arrowprops ).