This example demonstrates how to use geom_text() to add text as markers. It works pretty much the same as geom_point(), but add text instead of circles. A few arguments must be provided:

• label: what text you want to display
• nudge_x and nudge_y: shifts the text along X and Y axis
• check_overlap tries to avoid text overlap. Note that a package called ggrepel extends this concept further

geom_label() works pretty much the same way as geom_text(). However, text is wrapped in a rectangle that you can customize (see next example).

Of course, you don’t have to label all dots on the chart. You can also add a piece of text on a specific position. Since we’re here, note that you can custom the annotation of geom_label with label.padding, label.size, color and fill as described below:

Last but not least, you can also select a group of marker and annotate them only. Here, only car with mpg > 20 and wt > 3 are annotated thanks to a data filtering in the geom_label() call.