Back From The Dead

Recovered from a major HDD crash and data loss.

Anyway, here’s a quick fun snippet, looking at the idioms and code size of Python vs Ruby: Getting the histogram of an english text. You can try this on some text of your choice.

Python

        1: import sys,re,collections

       2: ct=0;

       3: expr = re.compile('\w')

       4: f_obj = open(sys.argv[1])

       5: dict = collections.defaultdict(int)

       6: for line in f_obj:

       7:     for match in expr.finditer(line):

       8:         ct +=1

       9:         dict[match.group(0)] += 1

      10:  

      11:  

      12: from operator import itemgetter

      13: dict = sorted(dict.items(), key=itemgetter(1),reverse=True)

      14: for (letter, value) in dict:

      15:     print "%s\t%f%%\t[%s/%d]" % (letter,value*100.0/ct, value, ct)

      16:

Ruby

       1: dict = {}

       2: dict.default = 0

       3: ct = 0

       4: open(ARGV[0]) do | f |

       5:   while c = f.read(1) do

       6:     if c =~ /\w/

       7:         ct += 1

       8:         dict[c] += 1

       9:     end

      10:   end

      11: end

      12: dict.sort{|a,b| b[1]<=>a[1]}.each { 

      13:    |key,value| print "%s\t%f%%\t[%d/%d]\n" %

      14:         [key, value*100.0/ct, value, ct]}