In this article, you will learn how to set ggplot breaks for continuous x and y axes. The function scale_x_continuous() and scale_y_continuous() can be used for ggplot axis breaks settings.
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GGPlot2 Essentials for Great Data Visualization in RPrerequisites
Load the ggplot2 package and set the theme function theme_classic() as the default theme:
library(ggplot2)
theme_set(
theme_classic() +
theme(legend.position = "top")
)Basic scatter plots
sp <- ggplot(cars, aes(x = speed, y = dist)) +
geom_point()
sp
Change axis ticks break interval
# Break y axis by a specified value
# a tick mark is shown on every 50
sp + scale_y_continuous(breaks=seq(0, 150, by = 50))
# Tick marks can be spaced randomly
sp + scale_y_continuous(breaks=c(0, 50, 65, 75, 150))
Remove breaks
# Remove y tick mark labels and grid lines
sp + scale_y_continuous(breaks=NULL)
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