How can I add annotations to my ggplot2 charts in R?

How can I add annotations to my ggplot2 charts in R?

You can use the annotate() function in ggplot2 to add text, shapes, or images to your plots. What kind of annotation do you want to add?

I want to add a text label to a specific point on my scatter plot.

You can do that by specifying the x and y coordinates in the annotate() function. For example: annotate('text', x=3, y=5, label='My Point'). Would you like to see a complete example?

Yes, please provide a complete example with a scatter plot.

Sure! Here's a simple example:

library(ggplot2)

# Create a scatter plot
p <- ggplot(mtcars, aes(x=wt, y=mpg)) +
  geom_point() +
  annotate('text', x=3, y=25, label='High Efficiency')

print(p)

This will add a label 'High Efficiency' at the specified coordinates.