Python 绘制混淆矩阵(Confusion Matrix)
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import numpy as npimport matplotlib.pyplot as pltfrom pylab import *conf_arr=[[13,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,4,0,5,0,1,0,0,],[0,0,0,0,0,0,0,1,0,0,0,0,2,0,2,0,1,0,2,1,2,0,0,0,0,0,0,0,1,0,10,5,0,0,0,0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,],[0,0,9,0,0,0,0,1,0,0,0,0,1,0,0,2,0,0,1,1,0,0,0,0,0,1,1,0,2,0,0,0,0,0,0,2,0,1,0,0,0,0,1,0,4,0,1,0,0,0,2,],[1,0,0,12,0,1,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,2,2,0,0,0,0,0,4,0,0,0,3,0,0,0,0,0,1,0,1,0,0,],[0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,3,1,0,1,0,1,0,0,0,0,6,2,0,0,1,0,0,0,0,0,0,4,0,0,0,0,0,0,0,2,0,3,0,2,0,2,],[0,0,0,1,0,6,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,1,0,1,1,0,0,0,0,0,0,0,0,0,0,2,0,8,0,2,0,1,0,0,0,0,],[1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2,2,0,0,0,0,0,1,0,0,0,0,0,5,0,3,1,1,0,0,0,0,1,0,0,0,0,7,0,1,0,0,0,0,3,1,],[0,0,0,0,0,0,0,10,0,0,0,0,5,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,3,4,0,0,0,0,0,2,0,0,0,0,0,0,1,0,1,0,0,0,1,],[0,0,0,0,0,1,0,0,3,0,0,0,0,0,0,0,0,0,1,0,1,0,1,0,0,1,2,0,1,0,1,0,0,0,0,0,0,1,0,0,0,0,1,0,2,0,4,0,1,3,6,],[0,0,2,0,0,0,0,0,1,6,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,3,0,0,0,0,8,0,0,0,2,0,1,0,0,0,0,0,0,0,2,0,1,0,0,1,0,],[0,0,0,0,0,0,0,0,0,0,2,1,2,0,0,0,0,0,1,0,0,0,1,0,0,2,1,0,0,0,0,0,0,0,0,0,0,3,1,0,3,0,1,0,2,0,6,0,2,2,0,],[0,0,0,0,0,0,0,0,0,0,0,4,1,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,1,0,1,0,0,1,0,1,3,0,0,4,0,2,0,2,0,5,0,0,1,2,],[0,0,0,0,0,0,0,7,0,0,0,0,10,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,3,0,0,0,0,1,0,3,0,1,0,2,1,0,],[1,0,0,0,0,0,0,0,0,1,0,0,2,2,0,0,0,0,0,1,1,0,0,0,0,1,0,0,0,0,4,1,1,0,0,1,1,0,1,0,0,0,1,0,9,0,0,0,0,2,0,],[0,0,0,0,0,0,0,0,0,0,0,0,1,0,3,0,3,0,0,0,1,0,0,0,0,0,2,0,1,0,4,10,0,0,0,0,0,0,0,0,0,1,0,0,3,0,0,0,0,1,0,],[0,0,0,0,0,3,0,0,1,2,0,0,0,0,0,13,1,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,1,0,4,0,0,0,0,0,0,0,0,0,2,0,0,0,1,],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,5,0,1,0,0,0,0,0,0,1,0,0,3,3,1,3,0,0,2,0,1,2,0,0,0,0,0,0,3,0,2,0,0,1,1,],[0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,1,6,1,0,2,1,0,0,0,0,1,1,1,1,1,1,0,0,0,0,0,2,0,3,1,0,0,0,0,1,0,3,0,0,1,0,],[0,0,0,0,0,1,0,1,0,1,0,0,2,0,0,0,0,0,11,0,0,0,0,0,0,0,0,0,0,0,1,3,0,0,0,0,1,2,1,0,0,0,0,0,3,0,0,0,0,3,0,],[0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,13,0,0,0,0,0,0,0,0,0,1,0,5,1,0,0,0,0,0,0,0,0,1,1,0,3,0,2,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,4,0,1,2,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,1,0,6,0,2,0,1,4,1,],[0,0,0,0,0,0,0,1,0,0,0,0,4,0,0,0,0,0,0,3,1,1,0,0,0,0,0,2,0,0,3,5,1,0,2,0,1,0,0,0,2,0,0,0,0,0,0,0,0,4,0,],[0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,1,0,1,0,0,0,9,0,0,1,0,0,0,0,0,2,0,0,0,0,2,1,1,0,4,0,1,0,0,0,4,0,1,0,0,],[0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,2,0,0,0,1,3,0,0,1,0,0,0,0,3,1,1,0,7,0,1,0,2,0,3,0,0,1,0,],[0,0,1,0,0,0,0,0,0,0,0,0,4,0,0,0,2,0,0,0,0,0,0,0,0,1,0,0,2,0,1,4,2,0,0,0,1,0,0,0,0,1,4,0,3,0,3,0,0,1,0,],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,16,0,0,0,1,0,0,0,0,1,1,1,0,2,0,1,0,0,0,0,0,6,0,0,0,0,],[0,0,0,2,0,5,0,0,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,17,0,0,0,1,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,1,0,0,1,0,2,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,2,0,0,1,0,0,0,10,0,2,0,1,5,1,],[0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,9,1,1,2,0,0,0,0,1,1,1,0,3,0,0,0,5,0,0,0,1,2,0,],[0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,2,0,0,0,0,0,0,0,2,17,0,0,0,0,1,0,0,0,0,0,3,0,0,0,1,0,2,0,0,0,0,],[0,0,0,0,0,0,0,4,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,5,0,15,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,20,1,0,0,0,0,1,0,0,0,0,0,0,2,0,1,0,0,2,0,],[0,0,0,0,0,0,0,3,0,0,0,0,4,0,1,2,1,0,2,0,1,0,0,0,0,0,0,0,0,0,0,4,4,0,0,0,0,0,0,0,0,0,1,0,2,0,1,0,0,4,0,],[0,0,2,1,0,0,0,0,1,2,0,0,0,0,0,2,0,0,3,0,0,0,0,0,0,0,0,0,1,1,1,2,2,0,0,0,8,1,0,0,0,0,0,0,1,0,1,0,0,1,0,],[2,0,8,0,0,0,0,0,5,2,0,0,1,0,0,0,0,0,3,1,0,1,0,0,0,1,0,0,1,0,0,1,0,0,2,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,2,1,0,0,0,0,0,0,0,1,0,22,0,0,0,0,],[0,0,1,1,0,0,0,0,0,1,0,0,1,0,0,3,0,0,1,0,2,0,0,0,0,0,1,0,1,0,0,3,0,0,0,1,12,0,0,0,0,0,0,0,0,0,0,0,0,2,0,],[0,0,0,0,0,1,0,1,1,0,0,1,0,0,0,0,1,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,17,0,0,0,0,3,0,0,0,1,0,1,0,1,],[3,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,2,0,0,0,0,1,0,1,0,14,0,0,1,1,0,0,0,3,0,0,0,0,],[1,0,0,4,0,2,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2,1,1,0,0,1,0,6,2,1,0,2,0,1,0,0,0,0,0,3,0,0,],[1,0,0,1,0,1,0,0,0,0,0,3,1,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,1,0,0,0,0,0,3,1,0,0,8,0,1,0,1,0,5,0,1,0,0,],[0,0,0,0,0,0,0,0,0,0,0,0,2,0,1,0,1,0,1,0,1,0,0,0,0,0,0,0,2,0,3,4,0,0,3,0,0,2,0,0,0,4,0,0,2,0,0,0,1,3,0,],[0,0,1,0,0,0,0,1,0,0,0,1,2,0,0,0,0,0,1,0,0,0,0,0,0,1,1,0,0,0,0,2,0,0,0,0,0,1,0,0,0,0,15,0,0,0,0,0,3,1,0,],[0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,3,0,0,1,0,1,0,0,0,0,3,0,0,0,0,1,3,1,0,1,0,0,2,0,0,0,0,2,0,8,0,0,0,0,2,0,],[0,0,0,0,0,0,0,0,1,1,0,1,0,0,1,2,1,0,1,0,1,2,0,0,0,1,0,0,1,0,0,2,0,0,1,0,2,2,0,0,0,0,0,0,8,0,0,0,1,0,1,],[1,0,0,0,0,0,0,0,4,1,0,1,1,0,0,2,1,0,2,0,0,0,0,1,0,0,0,0,0,0,0,2,0,0,0,1,2,2,0,0,0,0,0,0,1,0,0,0,4,2,2,],[0,0,0,1,0,0,0,0,0,0,0,2,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,5,0,0,0,0,0,0,0,0,0,18,0,1,0,0,],[1,0,0,0,0,0,0,0,0,0,0,2,1,0,0,0,2,0,0,0,3,0,0,0,0,0,0,1,1,0,2,1,0,0,1,2,2,0,0,0,0,0,0,0,5,0,5,0,0,0,1,],[0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,2,0,0,0,2,0,0,0,0,1,0,0,0,0,0,3,0,0,0,0,1,0,0,0,1,0,7,9,1,],[1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,2,0,0,1,0,3,0,5,0,1,0,1,11,0,],[0,0,0,1,0,0,0,0,0,0,0,1,2,0,0,2,0,0,2,0,0,0,0,0,0,1,0,0,0,1,1,1,0,0,0,0,3,3,0,0,0,0,2,0,2,0,1,0,3,1,3,],];norm_conf = []for i in conf_arr: a = 0 tmp_arr = [] a = sum(i, 0) for j in i: tmp_arr.append(float(j)/float(a)) norm_conf.append(tmp_arr)fig = plt.figure()plt.clf()ax = fig.add_subplot(111)ax.set_aspect(1)res = ax.imshow(np.array(norm_conf), cmap=plt.cm.jet, interpolation='nearest')width = len(conf_arr)height = len(conf_arr[0])##for x in xrange(width):## for y in xrange(height):## ax.annotate(str(conf_arr[x][y]), xy=(y, x),## horizontalalignment='center',## verticalalignment='center')cb = fig.colorbar(res)alphabet = ['brush_hair','cartwheel','catch','chew','clap','climb','climb_stairs','dive','draw_sword','dribble','drink','eat','fall_floor','fencing','flic_flac','golf','handstand','hit','hug','jump','kick','kick_ball','kiss','laugh','pick','pour','pullup','punch','push','pushup','ride_bike','ride_horse','run','shake_hands','shoot_ball','shoot_bow','shoot_gun','sit','situp','smile','smoke','somersault','stand','swing_baseball','sword','sword_exercise','talk','throw','turn','walk','wave'];plt.xticks(fontsize=7)plt.yticks(fontsize=7)locs, labels = plt.xticks(range(width), alphabet[:width])for t in labels: t.set_rotation(90)#plt.xticks('orientation', 'vertical')#locs, labels = xticks([1,2,3,4], ['Frogs', 'Hogs', 'Bogs', 'Slogs'])#setp(alphabet, 'rotation', 'vertical')plt.yticks(range(height), alphabet[:height])plt.savefig('confusion_matrix.png', format='png')
from http://blog.sina.com.cn/s/blog_4db1685d010189qj.html
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