All charts/Waffle, marimekko & more
Cats, dogs or both
venn: two circles whose overlap has the area of the homes with both.
{chart 'venn', sets='pets', value='homes', title='Homes in a town with a cat, a dog or both', width=480, height=280}
pets,homes
Cat,4120
Dog,3480
Cat&Dog,960
{/chart}