Composing Gadfly plots
In the Exploring data with Gadfly section of Chapter 5, Introducing the Grammar of Graphics, we saw how to create small multiples and horizontally stack plots. For the latter, we used the hstack function, which takes a series of Gadfly plots, and stacks them horizontally, creating one row and multiple columns. We can use the vstack function to arrange the subplot vertically and create multiple rows. We can combine the result of vstack using hstack, or vice versa, to create a grid. However, it is also possible to use the gridstack function for that. The input of gridstack is a matrix of plots that indicates the position of each subplot in the grid.
In this section, we have noted the three main functions offered by Gadfly to arrange multiple plots into a single figure. Let’s summarize what we’ve learned so far.
