Graphics Reference
In-Depth Information
Figure 8-38. Top: with default breaks on the x-axis; bottom: with breaks specified
Notice that the formatting of the breaks changed. You can specify the formatting by using the
date_format()
function from the scales package. Here we'll use
"%Y %b"
, which results in a
format like “1992 Jun”, as shown in
Figure 8-39
:
library(scales)
p
+
scale_x_date(breaks
=
datebreaks, labels
=
date_format(
"%Y %b"
))
+
theme(axis.text.x
=
element_text(angle
=
30
, hjust
=
1
))
