％matplotlib内联不适用于模块内的绘图

Question

having trouble displaying plots in ipython notebook

here is a simplified version of what I do:

%matplotlib inline  
import MyPackage  
obj = MyPackage.MyObj()  
obj.display()  

inside MyPackage:

import matplotlib.pyplot as plt  
class MyObj(object):  
    ......  
    def display(self):  
        plt.figure()
        plt.scatter(DATA_IN_MyObj)   

return I got:

<matplotlib.figure.Figure at 0x5de5b10>

thank you all very much!

Answer 1

Since the plot command is inside your module, which has its own namespace, you have to append plt.show() in order to display the figure.

def display(self):  
    plt.scatter(DATA_IN_MyObj)
    plt.show()

plt.figure() is not necessary.

%matplotlib inline is IPython magic that imports many plotting functions and automatically issues plt.show() if one of these functions is detected in a cell.