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绘制散点图
假设通过爬虫你获得了北京 2016 年 3, 10 月份每天白天的最高气温 ( 分别位于列表 a, b ), 那么此时如何寻找出气温和随时间 ( 天 ) 变化的某种规律?
a = [ 11, 17, 16, 11, 12, 11, 12, 6, 6, 7, 8, 9, 12, 15, 14, 17, 18, 21, 16, 17, 20, 14, 15, 15, 15, 19, 21, 22, 22, 22, 23 ]
b = [ 26, 26, 28, 19, 21, 17, 16, 19, 18, 20, 20, 19, 22, 23, 17, 20, 21, 22, 23, 17, 20, 21, 20, 22, 15, 11, 15, 5, 13, 17, 10, 11, 13, 12, 13, 6 ]
要点: plt.scatter(x,y)
执行结果:
散点图的更多应用场景
不同条件 ( 维度 ) 之间的内在关系
观察数据的离散聚合程度