Add Table to ggplot2 Plot in R (Example)

 

In this R article you’ll learn how to draw a data frame table to a ggplot2 plot.

The post is structured as follows:

Let’s just jump right in.

 

Example Data, Add-On Packages & Default Plot

The following data will be used as basement for this R tutorial:

my_data <- data.frame(group = letters[1:3],         # Create example data
                      x = 1:9,
                      y = c(1, 3, 2, 1, 3, 1, 2, 1, 1))
my_data                                             # Print example data

 

table 1 data frame add table ggplot2

 

Table 1 visualizes the output of the RStudio console and reveals that our example data has nine data points and three columns.

To be able to use the functions of the ggplot2 package, we also need to install and load ggplot2:

install.packages("ggplot2")                         # Install ggplot2 package
library("ggplot2")                                  # Load ggplot2 package

As next step, we can create a plot of our data:

ggp <- ggplot(my_data, aes(x, y, color = group)) +  # Create ggpot2 plot without table
  geom_point(size = 3)
ggp                                                 # Draw plot

 

r graph figure 1 add table ggplot2

 

By running the previous R syntax we have created Figure 1, i.e. a ggplot2 scatterplot without any table in the plotting area.

Let’s create a data frame table in R:

my_table <- as.data.frame(table(my_data[ , c(1, 3)])) # Create example table
my_table                                            # Print example table

 

table 2 data frame add table ggplot2

 

As shown in Table 2, the previous code has created a data frame with three columns.

In the following example, I’ll explain how to add this table to our graph using the ggplot2 and ggpmisc packages.

 

Example: Add Table to ggplot2 Plot Using ggpmisc Package

This example explains how to add a table to a ggplot2 plot in R.

First, we have to install and load the ggpmisc package:

install.packages("ggpmisc")                         # Install & load ggpmisc
library("ggpmisc")

Next, we can use the annotate function to add our table within the plot window of our graph:

ggp +                                               # Add table to ggplot2 plot
  annotate(geom = "table",
           x = 9,
           y = 3,
           label = list(my_table))

 

r graph figure 2 add table ggplot2

 

By executing the previous code we have drawn Figure 2, i.e. a ggplot2 scatterplot with a table in the plotting area.

 

Video & Further Resources

Would you like to know more about ggplot2 plots and tables? Then you could watch the following video of my YouTube channel. I’m illustrating the topics of this article in the video:

 

The YouTube video will be added soon.

 

Besides the video, you could have a look at the other articles on Statistics Globe. I have released numerous other articles already.

 

This tutorial has illustrated how to add a table within the plotting area of a ggplot2 graphic in the R programming language. Don’t hesitate to let me know in the comments, in case you have additional questions.

 

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