How to Rotate Axis Labels in ggplot2?

Rotate Axis Labels in ggplot2. Axis labels on graphs must occasionally be rotated.

In this post, we’ll look at how to rotate and space axis labels in the R programming language using ggplot2.

Let’s look at how to rotate the labels on the axes in a ggplot2 plot. Let’s begin by creating a basic data frame and the plot.

Rotate Axis Labels in ggplot2

library(ggplot2)
p <- ggplot(ToothGrowth, aes(x = factor(dose), y = len,fill=factor(dose))) +
geom_boxplot()
p

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Using the theme function, we can rotate the axis label and axis.

Syntax:

plot + theme( axis.text.x / axis.text.y = element_text( angle )

Rotation based on vjust and hjust

p + theme(axis.text.x = element_text(angle = 45, vjust = 1, hjust=1))

To ensure that the labels are close enough to the plot, you may need to alter the vjust and hjust values depending on the angle at which you rotate the labels.

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Change axis tick mark labels

p + theme(axis.text.x = element_text(face = "bold", color = "red",
size = 12, angle = 45),
axis.text.y = element_text(face = "bold", color = "blue",
size = 12, angle = 45))

Remove x and y axis tick mark labels

Let’s Remove x and y-axis tick mark labels

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p + theme(axis.text.x = element_blank(),  axis.text.y = element_blank())

Remove axis ticks and tick mark labels

p + theme(axis.text.x = element_blank(),  axis.text.y = element_blank(),
axis.ticks = element_blank())

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I hope you can now rotate labels in ggplot2 with ease.