
ggplot2 - Create Elegant Data Visualisations Using the Grammar …
ggplot2 is a system for declaratively creating graphics, based on The Grammar of Graphics. You provide the data, tell ggplot2 how to map variables to aesthetics, what graphical primitives to …
Introduction to ggplot2
ggplot2 is an R package for producing visualizations of data. Unlike many graphics packages, ggplot2 uses a conceptual framework based on the grammar of graphics. This allows you to …
Create a new ggplot — ggplot • ggplot2
ggplot() initializes a ggplot object. It can be used to declare the input data frame for a graphic and to specify the set of aesthetic mappings for the plot, intended to be common throughout all …
Package index • ggplot2
All ggplot2 plots begin with a call to ggplot(), supplying default data and aesthetic mappings, specified by aes(). You then add layers, scales, coords and facets with +.
FAQ: Axes • ggplot2
By default, ggplot2 expands the scale by 5% on each side for continuous variables and by 0.6 units on each side for discrete variables. To keep the default expansion on top while removing …
Aesthetic specifications - ggplot2
In addition, ggplot2 provides a conversion factor as the variable .pt, so if you want to draw 12pt text, you can also set size = 12 / .pt. Justification Horizontal and vertical justification have the …
FAQ: Barplots • ggplot2
How can I make a bar plot of group means? Either calculate the group means first and use geom_col() to draw the bars or let ggplot2 calculate the means with stat_summary() with fun = …
Using ggplot2 in packages
Using ggplot2 in Depends will attach ggplot2 when your package is attached, which includes when your package is tested. This makes it difficult to ensure that others can use the functions …
FAQ: Customising - ggplot2
Note that ggplot2 has a variety of complete themes that might already do what you’re hoping to accomplish. For example, if you prefer a more minimal look to your plots, without the grey …
FAQ: Reordering • ggplot2
Bar plots How can I reorder the bars in a bar plot by their value? Change the order of the levels of the factor variable you’re creating the bar plot for in the aes thetic mapping. The forcats …