如何将matplotlib饼图中显示的值整圆？

Question

饼形图的示例代码给出here：

figure(1, figsize=(6,6)) 
ax = axes([0.1, 0.1, 0.8, 0.8])  
labels = 'Frogs', 'Hogs', 'Dogs', 'Logs' 
fracs = [15, 30, 45, 10] 
explode=(0, 0.05, 0, 0) 

pie(fracs, explode=explode, labels=labels, 
       autopct='%1.1f%%', shadow=True, startangle=90) 

title('Raining Hogs and Dogs', bbox={'facecolor':'0.8', 'pad':5}) 

show() 

输出看起来是这样的：

我想它只是说15％，10％等，最后没有不必要的小数位。我该怎么做呢？

Answer 1

距离autopct =改变autopct = '％1.0˚F%%' '％1.1˚F%%'

""" 
Make a pie chart - see 
http://matplotlib.sf.net/matplotlib.pylab.html#-pie for the docstring. 

This example shows a basic pie chart with labels optional features, 
like autolabeling the percentage, offsetting a slice with "explode", 
adding a shadow, and changing the starting angle. 

""" 
from pylab import * 

# make a square figure and axes 
figure(1, figsize=(6,6)) 
ax = axes([0.1, 0.1, 0.8, 0.8]) 

# The slices will be ordered and plotted counter-clockwise. 
labels = 'Frogs', 'Hogs', 'Dogs', 'Logs' 
fracs = [15, 30, 45, 10] 
explode=(0, 0.05, 0, 0) 

pie(fracs, explode=explode, labels=labels, 
       autopct='%1.0f%%', shadow=True, startangle=90) 
       # The default startangle is 0, which would start 
       # the Frogs slice on the x-axis. With startangle=90, 
       # everything is rotated counter-clockwise by 90 degrees, 
       # so the plotting starts on the positive y-axis. 

title('Raining Hogs and Dogs', bbox={'facecolor':'0.8', 'pad':5}) 

show()