class Gruff::Bar

Gruff::Bar provide a bar graph that presents categorical data with rectangular bars.

Here’s how to set up a Gruff::Bar.

g = Gruff::Bar.new
g.title = 'Bar Graph With Manual Colors'
g.spacing_factor = 0.1
g.group_spacing = 20
g.data :Art, [0, 5, 8, 15], '#990000'
g.data :Philosophy, [10, 3, 2, 8], '#009900'
g.data :Science, [2, 15, 8, 11], '#990099'
g.write('bar.png')