Python Matplotlib模块--pylab
#-*- coding: utf-8 -*-
'''
subplot(m,n,p):其中，m表示是图排成m行，n表示图排成n列，也就是整个figure中有n个图是排成一行的，一共m行，如果m=2就是表示2行图。p表示图所在的位置，p=1表示从左到右从上到下的第一个位置。
np.random.uniform(0.5,1.0,n):获取 0.5~1.0之间ｎ个随机数
zip(x,y):将x和Y中的数据两两配对最后以列表返回
plt.text(x+0.4, y+0.1, "%.2f"%y, ha="center"):指定文字出现在柱状图上的位置和内容
x+0.4:文字显示横向增加0.4长度
y+0.1:文字显示纵向增加0.1长度
"%.2f"%y：应该显示的内容
@author: soyo
'''
import matplotlib.pylab as plt
import numpy as np
plt.subplot(2,1,1)
n=12
x=np.arange(n)
print x
print x/float(n)
print np.random.uniform(0.5,1.0,n)
y1=(1-x/float(n))*np.random.uniform(0.5,1.0,n)
y2=(1-x/float(n))*np.random.uniform(0.5,1.0,n)
plt.bar(x,+y1,facecolor="red",edgecolor="grey")
plt.bar(x,-y2,facecolor="lightblue",edgecolor="orange")
print y1
for x,y in zip(x,y1):
plt.text(x+0.4, y+0.1, "%.2f"%y, ha="center")
print (x,y)
plt.ylim(-1.25,+1.25)
plt.subplot(2,2,3)
x=np.linspace(-np.pi,np.pi,300, endpoint=True)
print x
sin=np.sinc(x)
cos=np.cos(x)
plt.plot(x,cos,color="red",linewidth=2.7,linestyle="-")
plt.plot(x,sin,color="blue",linewidth=4,linestyle="--")
plt.xlim(x.min()*1.1,x.max()*1.1)
plt.xticks([-np.pi,-np.pi/2,0,np.pi/2,np.pi],[r'$-\pi$',r'$-\pi/2$',r'$0$',r'$+\pi/2$',r'$+\pi$'])
plt.ylim(cos.min()*1.1,cos.max()*1.1)
# plt.yticks([-1,0,1],[r'$-1$',r'$0$',r'$+1$'])
plt.yticks([-1,0,1]) plt.subplot(2,2,4)
m=10
z=np.random.uniform(5,9,6)
plt.pie(z)
plt.show()
结果：
[ 0 1 2 3 4 5 6 7 8 9 10 11]
[ 0. 0.08333333 0.16666667 0.25 0.33333333 0.41666667
0.5 0.58333333 0.66666667 0.75 0.83333333 0.91666667]
[ 0.95962168 0.83510776 0.59960879 0.9103227 0.86161055 0.85219339
0.64341482 0.50396784 0.79940237 0.78113541 0.66371799 0.63459297]
[ 0.65987664 0.87527832 0.79239077 0.61438775 0.44085434 0.38703261
0.40706581 0.2836271 0.25465063 0.20754596 0.124999 0.08099565]
(0, 0.65987664052659789)
(1, 0.87527832104794756)
(2, 0.79239077290271298)
(3, 0.61438775127130618)
(4, 0.44085434356099779)
(5, 0.3870326100974873)
(6, 0.40706580998264275)
(7, 0.2836271049672956)
(8, 0.2546506260468242)
(9, 0.20754596219057092)
(10, 0.12499900221786377)
(11, 0.080995646704109761)
[-3.14159265 -3.12057866 -3.09956466 -3.07855066 -3.05753666 -3.03652267
-3.01550867 -2.99449467 -2.97348067 -2.95246667 -2.93145268 -2.91043868
-2.88942468 -2.86841068 -2.84739669 -2.82638269 -2.80536869 -2.78435469
-2.7633407 -2.7423267 -2.7213127 -2.7002987 -2.6792847 -2.65827071
-2.63725671 -2.61624271 -2.59522871 -2.57421472 -2.55320072 -2.53218672
-2.51117272 -2.49015873 -2.46914473 -2.44813073 -2.42711673 -2.40610273
-2.38508874 -2.36407474 -2.34306074 -2.32204674 -2.30103275 -2.28001875
-2.25900475 -2.23799075 -2.21697676 -2.19596276 -2.17494876 -2.15393476
-2.13292076 -2.11190677 -2.09089277 -2.06987877 -2.04886477 -2.02785078
-2.00683678 -1.98582278 -1.96480878 -1.94379479 -1.92278079 -1.90176679
-1.88075279 -1.85973879 -1.8387248 -1.8177108 -1.7966968 -1.7756828
-1.75466881 -1.73365481 -1.71264081 -1.69162681 -1.67061282 -1.64959882
-1.62858482 -1.60757082 -1.58655683 -1.56554283 -1.54452883 -1.52351483
-1.50250083 -1.48148684 -1.46047284 -1.43945884 -1.41844484 -1.39743085
-1.37641685 -1.35540285 -1.33438885 -1.31337486 -1.29236086 -1.27134686
-1.25033286 -1.22931886 -1.20830487 -1.18729087 -1.16627687 -1.14526287
-1.12424888 -1.10323488 -1.08222088 -1.06120688 -1.04019289 -1.01917889
-0.99816489 -0.97715089 -0.95613689 -0.9351229 -0.9141089 -0.8930949
-0.8720809 -0.85106691 -0.83005291 -0.80903891 -0.78802491 -0.76701092
-0.74599692 -0.72498292 -0.70396892 -0.68295492 -0.66194093 -0.64092693
-0.61991293 -0.59889893 -0.57788494 -0.55687094 -0.53585694 -0.51484294
-0.49382895 -0.47281495 -0.45180095 -0.43078695 -0.40977295 -0.38875896
-0.36774496 -0.34673096 -0.32571696 -0.30470297 -0.28368897 -0.26267497
-0.24166097 -0.22064698 -0.19963298 -0.17861898 -0.15760498 -0.13659098
-0.11557699 -0.09456299 -0.07354899 -0.05253499 -0.031521 -0.010507
0.010507 0.031521 0.05253499 0.07354899 0.09456299 0.11557699
0.13659098 0.15760498 0.17861898 0.19963298 0.22064698 0.24166097
0.26267497 0.28368897 0.30470297 0.32571696 0.34673096 0.36774496
0.38875896 0.40977295 0.43078695 0.45180095 0.47281495 0.49382895
0.51484294 0.53585694 0.55687094 0.57788494 0.59889893 0.61991293
0.64092693 0.66194093 0.68295492 0.70396892 0.72498292 0.74599692
0.76701092 0.78802491 0.80903891 0.83005291 0.85106691 0.8720809
0.8930949 0.9141089 0.9351229 0.95613689 0.97715089 0.99816489
1.01917889 1.04019289 1.06120688 1.08222088 1.10323488 1.12424888
1.14526287 1.16627687 1.18729087 1.20830487 1.22931886 1.25033286
1.27134686 1.29236086 1.31337486 1.33438885 1.35540285 1.37641685
1.39743085 1.41844484 1.43945884 1.46047284 1.48148684 1.50250083
1.52351483 1.54452883 1.56554283 1.58655683 1.60757082 1.62858482
1.64959882 1.67061282 1.69162681 1.71264081 1.73365481 1.75466881
1.7756828 1.7966968 1.8177108 1.8387248 1.85973879 1.88075279
1.90176679 1.92278079 1.94379479 1.96480878 1.98582278 2.00683678
2.02785078 2.04886477 2.06987877 2.09089277 2.11190677 2.13292076
2.15393476 2.17494876 2.19596276 2.21697676 2.23799075 2.25900475
2.28001875 2.30103275 2.32204674 2.34306074 2.36407474 2.38508874
2.40610273 2.42711673 2.44813073 2.46914473 2.49015873 2.51117272
2.53218672 2.55320072 2.57421472 2.59522871 2.61624271 2.63725671
2.65827071 2.6792847 2.7002987 2.7213127 2.7423267 2.7633407
2.78435469 2.80536869 2.82638269 2.84739669 2.86841068 2.88942468
2.91043868 2.93145268 2.95246667 2.97348067 2.99449467 3.01550867
3.03652267 3.05753666 3.07855066 3.09956466 3.12057866 3.14159265]
[ 0 1 2 3 4 5 6 7 8 9 10 11]
[ 0. 0.08333333 0.16666667 0.25 0.33333333 0.41666667
0.5 0.58333333 0.66666667 0.75 0.83333333 0.91666667]
[ 0.95962168 0.83510776 0.59960879 0.9103227 0.86161055 0.85219339
0.64341482 0.50396784 0.79940237 0.78113541 0.66371799 0.63459297]
[ 0.65987664 0.87527832 0.79239077 0.61438775 0.44085434 0.38703261
0.40706581 0.2836271 0.25465063 0.20754596 0.124999 0.08099565]
(0, 0.65987664052659789)
(1, 0.87527832104794756)
(2, 0.79239077290271298)
(3, 0.61438775127130618)
(4, 0.44085434356099779)
(5, 0.3870326100974873)
(6, 0.40706580998264275)
(7, 0.2836271049672956)
(8, 0.2546506260468242)
(9, 0.20754596219057092)
(10, 0.12499900221786377)
(11, 0.080995646704109761)
[-3.14159265 -3.12057866 -3.09956466 -3.07855066 -3.05753666 -3.03652267
-3.01550867 -2.99449467 -2.97348067 -2.95246667 -2.93145268 -2.91043868
-2.88942468 -2.86841068 -2.84739669 -2.82638269 -2.80536869 -2.78435469
-2.7633407 -2.7423267 -2.7213127 -2.7002987 -2.6792847 -2.65827071
-2.63725671 -2.61624271 -2.59522871 -2.57421472 -2.55320072 -2.53218672
-2.51117272 -2.49015873 -2.46914473 -2.44813073 -2.42711673 -2.40610273
-2.38508874 -2.36407474 -2.34306074 -2.32204674 -2.30103275 -2.28001875
-2.25900475 -2.23799075 -2.21697676 -2.19596276 -2.17494876 -2.15393476
-2.13292076 -2.11190677 -2.09089277 -2.06987877 -2.04886477 -2.02785078
-2.00683678 -1.98582278 -1.96480878 -1.94379479 -1.92278079 -1.90176679
-1.88075279 -1.85973879 -1.8387248 -1.8177108 -1.7966968 -1.7756828
-1.75466881 -1.73365481 -1.71264081 -1.69162681 -1.67061282 -1.64959882
-1.62858482 -1.60757082 -1.58655683 -1.56554283 -1.54452883 -1.52351483
-1.50250083 -1.48148684 -1.46047284 -1.43945884 -1.41844484 -1.39743085
-1.37641685 -1.35540285 -1.33438885 -1.31337486 -1.29236086 -1.27134686
-1.25033286 -1.22931886 -1.20830487 -1.18729087 -1.16627687 -1.14526287
-1.12424888 -1.10323488 -1.08222088 -1.06120688 -1.04019289 -1.01917889
-0.99816489 -0.97715089 -0.95613689 -0.9351229 -0.9141089 -0.8930949
-0.8720809 -0.85106691 -0.83005291 -0.80903891 -0.78802491 -0.76701092
-0.74599692 -0.72498292 -0.70396892 -0.68295492 -0.66194093 -0.64092693
-0.61991293 -0.59889893 -0.57788494 -0.55687094 -0.53585694 -0.51484294
-0.49382895 -0.47281495 -0.45180095 -0.43078695 -0.40977295 -0.38875896
-0.36774496 -0.34673096 -0.32571696 -0.30470297 -0.28368897 -0.26267497
-0.24166097 -0.22064698 -0.19963298 -0.17861898 -0.15760498 -0.13659098
-0.11557699 -0.09456299 -0.07354899 -0.05253499 -0.031521 -0.010507
0.010507 0.031521 0.05253499 0.07354899 0.09456299 0.11557699
0.13659098 0.15760498 0.17861898 0.19963298 0.22064698 0.24166097
0.26267497 0.28368897 0.30470297 0.32571696 0.34673096 0.36774496
0.38875896 0.40977295 0.43078695 0.45180095 0.47281495 0.49382895
0.51484294 0.53585694 0.55687094 0.57788494 0.59889893 0.61991293
0.64092693 0.66194093 0.68295492 0.70396892 0.72498292 0.74599692
0.76701092 0.78802491 0.80903891 0.83005291 0.85106691 0.8720809
0.8930949 0.9141089 0.9351229 0.95613689 0.97715089 0.99816489
1.01917889 1.04019289 1.06120688 1.08222088 1.10323488 1.12424888
1.14526287 1.16627687 1.18729087 1.20830487 1.22931886 1.25033286
1.27134686 1.29236086 1.31337486 1.33438885 1.35540285 1.37641685
1.39743085 1.41844484 1.43945884 1.46047284 1.48148684 1.50250083
1.52351483 1.54452883 1.56554283 1.58655683 1.60757082 1.62858482
1.64959882 1.67061282 1.69162681 1.71264081 1.73365481 1.75466881
1.7756828 1.7966968 1.8177108 1.8387248 1.85973879 1.88075279
1.90176679 1.92278079 1.94379479 1.96480878 1.98582278 2.00683678
2.02785078 2.04886477 2.06987877 2.09089277 2.11190677 2.13292076
2.15393476 2.17494876 2.19596276 2.21697676 2.23799075 2.25900475
2.28001875 2.30103275 2.32204674 2.34306074 2.36407474 2.38508874
2.40610273 2.42711673 2.44813073 2.46914473 2.49015873 2.51117272
2.53218672 2.55320072 2.57421472 2.59522871 2.61624271 2.63725671
2.65827071 2.6792847 2.7002987 2.7213127 2.7423267 2.7633407
2.78435469 2.80536869 2.82638269 2.84739669 2.86841068 2.88942468
2.91043868 2.93145268 2.95246667 2.97348067 2.99449467 3.01550867
3.03652267 3.05753666 3.07855066 3.09956466 3.12057866 3.14159265]
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