I am plotting a graph with a categorical variable on the x axis and a numerical variable on the y axis.
For the x axis, given that there are many data points, the default text formatting causes the label for each tick mark to overlap with other labels. How do I (a) change the font size for my axis text and (b) change the orientation of the text so that the text is perpendicular to the axis?
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Log in to answerBest Answer · By JanBask Data Science Expert
Answered on Jun 15, 2021
To change font size ggplot2 and direction of the axes, add the following function to your plot:
theme(text = element_text(size=15),axis.text.x = element_text(angle=90, hjust=1))
angle rotates the text, and hjust controls the horizontal justification.
For example:
data(iris)
ggplot(iris, aes(x=Species, y=Sepal.Length)) +
geom_jitter(width = 0.1, alpha = 0.5) +
theme(text = element_text(size=15),axis.text.x = element_text(angle=90, hjust=1))Output:
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