如何使用python创建一个简单的饼图

Visual Studio不需要安装matplotlib.为了获得最佳结果,首先从python.org安装Python,32位或64位,具体取决于您的计算机的体系结构和您运行的Windows版本(例如,即使您有64位处理器,如果您'重新运行32位Windows,下载32位Python).版本并不特别重要,我更喜欢3.3.3,但更多的软件包与2.7.6兼容,所以请选择.Matplotlib及其依赖项都可用于任一版本.

接下来,转到Christoph Gohlke的Windows Python扩展包,并为您的Python版本下载以下包:

matplotlib

numpy

python-dateutil

pytz

pyparsing

six

Pillow

tornado

pyside

pyqt

这些包都是自解压安装程序.以任何顺序运行它们,当你完成后,你应该能够导入并使用matplotlib就好了.

一个示例饼图程序,从这里:

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='%1.1f%%', 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()