cube.py 文件源码

def _sdiv():
  "Demo code to test the above."
  import random
  bell= random.gauss
  random.seed(1)
  def go(lst,cohen=0.3,
         num1=lambda x:x[0],
         num2=lambda x:x[1]):
    print ""; print sorted(lst)[:10],"..."
    for d in  sdiv(lst,cohen=cohen,num1=num1,num2=num2):
      print d[1][0][0]
  l = [ (1,10), (2,11),  (3,12),  (4,13),
       (20,20),(21,21), (22,22), (23,23), (24,24),
       (30,30),(31,31), (32,32), (33,33),(34,34)]
  go(l,cohen=0.3)
  go(map(lambda x:(x[1],x[1]),l))
  ten     = lambda: bell(10,2)
  twenty  = lambda: bell(20,2)
  thirty  = lambda: bell(30,2)
  l=[]
  for _ in range(1000): 
    l += [(ten(),   ten()), 
          (twenty(),twenty()),
          (thirty(),thirty())]
  go(l,cohen=0.5)