这里利用Nathan Yau所著的<鲜活的数据:数据可视化指南>一书中的数据,学习画图. 数据地址:http://book.flowingdata.com/ch05/data/us-population-by-age.xls 准备工作:先导入matplotlib和pandas,用pandas读取excel文件,然后创建一个图像和一个坐标轴 import pandas as pd from matplotlib import pyplot as plt population=pd.read_ex
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