Have you ever wondered whether there is a clear correlation between the gas consumption of a car and its weight? To answer this question, we first have to load the dplyr and ggvis packages.
library(dplyr)
library(ggvis)
mtcars %>%
group_by(factor(cyl)) %>%
ggvis(~mpg, ~wt, fill = ~cyl) %>%
layer_points()
The ggvis plot gives us a nice visualization of the mtcars data set: