Graphics Reference
In-Depth Information
Figure 8-23. Left: y-axis label with angle=0; right: with angle=90
See Also
See Changing the Appearance of Text for more about controlling the appearance of the text.
Showing Lines Along the Axes
Problem
You want to display lines along the x- and y-axes, but not on the other sides of the graph.
Solution
Using themes, use axis.line ( Figure 8-24 ) :
library(gcookbook) # For the data set
p <- ggplot(heightweight, aes(x = ageYear, y = heightIn)) + geom_point()
p + theme(axis.line = element_line(colour = "black" ))
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