Using the mtcars dataset we plot can attempt to understand the relationship of various factors to gas mileage (mpg).

We plot weight (wt) vs. mileage (mpg) spatially along the x/y axes. We visualize the number of cylinders (cyl) as colors and the amount of horsepower (hp) as the size of an individual point in the plot.

## Warning in arrange_impl(.data, dots): '.Random.seed' is not an integer
## vector but of type 'NULL', so ignored