Faceting in R

Advanced faceting

Up until now, we’ve faceted our plots in the qplot() function using the facets= argument. This has two potential drawbacks:

1. Sometimes, we have many panes we’d like to create in a single dimension, so many that they would need to wrap around into multiple rows.
2. While it can be convenient to have our plots all be on the same axes, sometimes we don’t want that.

For example, when we don’t use scales='free', the figure has a lot of unused space in the left panel. See the figure here.FigureFaceting

There are two functions for faceting outside of what’s built into the qplot() function. The first is ...