Scale_x_discrete parameter labels can take a custom function object to modify each tick label accordingly. Use scale_x_discrete With Custom Function to Modify ggplot X Axis Tick Labels in R P3 <- ggplot(mpg, aes(manufacturer, cty)) + geom_point(colour = 'blue') + P2 <- ggplot(mpg, aes(manufacturer, cty)) + geom_point() + P1 <- ggplot(mpg, aes(manufacturer, cty)) + geom_point() Namely, several scatter plots are drawn from the mpg data set. Scale_x_discrete works similarly on different graphs, and the label manipulation technique is applicable, as shown in the following example. P3 <- p1 + scale_x_discrete('Cut Type', labels = abbreviate) The next code snippet uses the abbreviate function to automatically shorten the labels and then draw graphs as two columns.Ĭreate Custom Data Labels. P2 <- p1 + scale_x_discrete('Cut Type', labels = c('Fair' = 'F','Good' = 'G', 'Very Good' = 'VG','Premium' = 'P','Ideal' = 'I'))Īnother useful method to modify the labels on the x axis is to pass a function object as a labels parameter. P1 <- ggplot(diamonds, aes(cut)) + geom_bar(fill = 'orange') + scale_x_discrete('Cut') Both graphs are drawn side-by-side using the grid.arrange function, part of the gridExtra package. Alternatively, we can pass specific string values for each label by constructing a vector and assigning it to the labels parameter. x axis has the default title - cut, which can be modified by passing the string as the first argument of scale_x_discrete. The graph uses the cut column and plots the count of each type on the y axis. Notice that the first ggplot object is a bar graph based on the diamonds data set. In this case, we utilize scale_x_discrete to modify x axis tick labels for ggplot objects.

Scale_x_discrete together with scale_y_discrete are used for advanced manipulation of plot scale labels and limits. Use scale_x_discrete to Modify ggplot X Axis Tick Labels in R This article will introduce how to modify ggplot x-axis tick labels in R.

Use scale_x_discrete With Custom Function to Modify ggplot X Axis Tick Labels in R.

Use scale_x_discrete to Modify ggplot X Axis Tick Labels in R.

Excel graph axis label increments