Graphing for Ruby
Ruby
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graphene.gemspec

README

Basic Usage
===========

fibonacci_sequence = (0..10).inject([0,1]){|seq, index| seq << seq[-2] + seq[-1]; seq}
data = fibonacci_sequence.each_with_index.to_a    # data can be a array of two-value arrays, [[0, 0], [1, 1], [1, 2], [2, 3], [3, 4]]

chart = Graphene::Chart.new
chart.plot(data)                                  # plot, histogram, or bar

chart.to_svg