All about aesthetics: comparing aesthetics

Now that you've got some practice with using attributes, be careful of a major pitfall: these attributes can overwrite the aesthetics of your plot!

XP

1
- Using mtcars, create a plot base layer, plt_mpg_vs_wt. Map mpg onto y and wt onto x.
- Add a point layer, mapping the categorical no. of cylinders, fcyl, onto size.
2
Change the mapping. This time fcyl should be mapped onto alpha.
3
Change the mapping again. This time fycl should be mapped onto shape.
4
- Swap the geom layer: change points to text.
- Change the mapping again. This time fycl should be mapped onto label.