Get alphabetical histogram from census data (census.gov/genealogy/name

name_histogram.rb

f = File.open("dist.all.last", 'r')
full = []
h = {}
last = 0

while( line = f.gets )
  data = []
  line.split(" ").each {|x| data << x}
  full << data
  
  if h[data[0][0]].is_a? Float
    h[data[0][0]] += (data[2].to_f - last)
  else
    h[data[0][0]] = (data[2].to_f - last)
  end
  last = data[2].to_f
end

f.close

data = []
h.each { |key, value| data << value }
puts h.sort_by { |key, value| value }

puts h.values.reduce(0) { |sum, value| sum + value }