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我试图创建一个简单的imshow()绘制2D高斯函数(matplotlib v.1.2.1)太多的对象:Matplotlib imshow()为CMAP
import matplotlib.pyplot as plt
import numpy as np
from pylab import *
def gaussian(x,y,stdx,stdy):
return 1.0/(2*np.pi*stdx*stdy) * (np.exp(-0.5*(x**2/stdx**2 + y**2/stdy**2)))
coords = np.linspace(-1,1,100)
X,Y = np.meshgrid(coords,coords)
std_list = np.linspace(1,2,20)
output = [gaussian(X,Y,std_list[i],std_list[i]) for i in range(len(std_list))]
for i in range(len(output)):
plt.imshow(X,Y,np.array(output[i]),cmap='bone')
plt.show()
而且我得到以下错误:
Traceback (most recent call last):
File "blur.py", line 14, in <module>
plt.imshow(X,Y,np.array(output[i]),cmap='bone')
TypeError: imshow() got multiple values for keyword argument 'cmap'
事实上,以确保我是不是疯了,我干脆拿出CMAP的说法,现在我发现了以下错误:
Traceback (most recent call last):
File "blur.py", line 14, in <module>
plt.imshow(X,Y,np.array(output[i]))
File "/home/username/anaconda/lib/python2.7/site-packages/matplotlib/pyplot.py", line 2737, in imshow
imlim=imlim, resample=resample, url=url, **kwargs)
File "/home/username/anaconda/lib/python2.7/site-packages/matplotlib/axes.py", line 7098, in imshow
if norm is not None: assert(isinstance(norm, mcolors.Normalize))
AssertionError
我已经确定imshow()的参数都具有相同的形状,所以我不完全确定我做错了什么。这可能是一个错误?
感谢您的快速响应!我总是忘记哪些函数使用范围,哪些可以用np.ndarrays作为输入。 – astromax