class Gruff::Dot

Graph with dots and labels along a vertical access. see: ‘Creating More Effective Graphs’ by Robbins

Here’s how to set up a Gruff::Dot.

g = Gruff::Dot.new
g.title = 'Dot Graph'
g.data :Art, [0, 5, 8, 15]
g.data :Philosophy, [10, 3, 2, 8]
g.data :Science, [2, 15, 8, 11]
g.write('dot.png')