mac-处理处理及画图的基本步骤 - 改改~_~

mac-处理处理及画图的基本步骤

2020-03-09 17:21  改改~_~  阅读(219)  评论(0)  编辑  收藏  举报

处理处理及画图的基本步骤：

from matplotlib import pyplot as plt
import pandas as pd

data2=pd.read_csv(\'/Users/ligaijiang/Pyexample/Plt/countries.csv\')

China_filter=data2.country==\'China\'
China_data=data2[China_filter]


US_filter=data2.country==\'United States\'
US_data=data2[US_filter]


JP_filter=data2.country==\'Japan\'
JP_data=data2[JP_filter]


#print(China_data)
#print(US_data)
#print(JP_data)


plt.plot(China_data.year,China_data.population)
plt.plot(US_data.year,US_data.population)
plt.plot(JP_data.year,JP_data.population)

plt.xlabel(\'Year\')
plt.ylabel(\'Population\')
plt.title(\'Country Population\')
plt.legend([\'China\',\'Us\',\'Jp\'])

plt.show()

 

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