hexbinto manipulate bivariate data has shown several tools. What bivariate data do you have that would benefit from an application using
ggplothasfunction has several other features that I did not explore in this chapter. Familiarize yourself with them.
When, how, and why?
mapfunctionality appears to be very robust. How might you change the
mapfunction calls used in the chapter to result in a clearer graphic presentation?
playwithtools to get a good idea about how the interaction works, especially the transfer of data between the external tool and R.