[英]IPython notebook won't show plot
Not sure why this simple plot won't show. 不知道为什么这个简单的图不会显示。 simply shows an In[*] and won't finish loading the plot. 只是显示一个In [*]而不会完成加载绘图。 Can't find any info on what the * means. 找不到有关*含义的任何信息。 Any help? 有什么帮助吗?
import numpy as np
import matplotlib.pyplot as plt
r = np.arange(1,11)
v2 = 1.0/r
font = {'family' : 'serif',
'color' : 'black',
'weight' : 'normal',
'size' : 18,
}
plt.xlabel('$V*$', fontdict = font)
plt.ylabel('$Radii$', fontdict = font)
plt.plot(r,v2,lw=2)
plt.show()
Setting the iPython notebook %matplotlib
magic command here is what you need to display the plot. 在此处设置iPython笔记本%matplotlib
magic命令是显示图所需要的。
Basically, that command tells the notebook which backend to use when plotting with matplotlib
, and sets it to work interactively. 基本上,该命令告诉笔记本使用matplotlib
进行绘图时要使用哪个后端,并将其设置为可交互工作。 You usually will want to set that at the top of your notebook. 通常,您希望将其设置在笔记本的顶部。
There are several options. 有几种选择。 A common one is 一个常见的是
%matplotlib inline
which displays the plots right there in the iPython notebook. 它在iPython笔记本中显示绘图。
Other options will depend on your system, but can include: 其他选项取决于您的系统,但可以包括:
‘gtk’, ‘gtk3’, ‘inline’, ‘nbagg’, ‘notebook’, ‘osx’, ‘qt’, ‘qt4’, ‘qt5’, ‘tk’, ‘wx’
If you just set: 如果您只是设置:
%matplotlib
without a gui option, it will use the default backend on your system (defined in your .matplotlibrc
file). 如果没有gui选项,它将使用系统上的默认后端(在.matplotlibrc
文件中定义)。
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