kevinrutherford / coin-tossing

Demonstration of variation in a simple process

coin-tossing / sparky.rb
100644 20 lines (14 sloc) 0.29 kb
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require 'sparkline'
 
def zero_or_one() rand(2) end
 
def one_or_minus_one
  (zero_or_one * 2) - 1
end
 
def next_value(y_values)
  y_values[-1] + one_or_minus_one
end
 
def y_values
  result = [0]
  1000.times { result << next_value(result) }
  result
end
 
puts Sparkline.new(y_values).to_svg