[Mark] python 聚类分析 kmeans() 函数使用时报错

from pylab import *
from scipy.cluster.vq import *
list1=[88,74,96,85]
list2=[92,99,95,94]
list3=[91,87,99,95]
list4=[78,99,97,81]
list5=[88,78,98,84]
data=vstack((list1,list2,list3,list4,list5))
centroids,_=kmeans(data,2)
result,_=vq(data,centroids)
print resultfrom pylab import *
from scipy.cluster.vq impor