code: def logodds(args):
      
      from math import log
      from jcvi.formats.base import DictFile
  
      p = OptionParser(logodds.__doc__)
      opts, args = p.parse_args(args)
  
      if len(args) != 2:
          sys.exit(not p.print_help())
  
      cnt1, cnt2 = args
      d = DictFile(cnt2)
      fp = open(cnt1)
      for row in fp:
          scf, c1 = row.split()
          c2 = d[scf]
          c1, c2 = float(c1), float(c2)
          c1 += 1
          c2 += 1
          score = int(100 * (log(c1) - log(c2)))
          print("{0}\t{1}".format(scf, score))
docs: %prog logodds cnt1 cnt2
  
      Compute log likelihood between two db.