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Minimum, maximum, total, average, count (Ruby)
Programming Algorithms example from a Well House Consultants training course
More on Programming Algorithms [link]
Source code: fodder_stats Module: Q110
# Minimum, maximum, total, average, count
# Algorithm demonstration (language used - Ruby) total = 0 counter = 0 fyle = File.new "fodder" minimum = nil maximum = nil loop do data = fyle.gets if data.nil? then break end value = data.to_i total = total + value counter = counter + 1 if minimum.nil? then minimum = value end if value < minimum then minimum = value end if maximum.nil? then maximum = value end if value > maximum then maximum = value end end avg = total.to_f / counter puts "Total of #{total} spent in #{counter} weeks" puts "Average is #{avg}" puts "Cheapest week and he still spent #{minimum}" puts "He nearly left us bust once by spending #{maximum}" __END__ Sample output: munchkin:rf12 grahamellis$ ruby fodder_stats Total of 4555 spent in 7 weeks Average is 650.714285714286 Cheapest week and he still spent 100 He nearly left us bust once by spending 1250 munchkin:rf12 grahamellis$ Sample data file: 831 100 350 500 1250 612 912 Learn about this subject
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