在matplotlib中制作散点图，在x轴上显示日期，在y上显示值 [英] Make a Scatter Plot in matplotlib with dates on x axis and values on y

问题描述

我在制作具有日期数组和一堆PM 2.5值的散点图时遇到了麻烦.我的列表如下所示:

I am having trouble making a scatter plot that has from a date array and a bunch of PM 2.5 values. My lists would look like the following:

dates = ['2015-12-20','2015-09-12']  
PM_25 = [80, 55]

推荐答案

import pandas as pd
dates = ['2015-12-20','2015-09-12']  
PM_25 = [80, 55]
dates = [pd.to_datetime(d) for d in dates]

plt.scatter(dates, PM_25, s =100, c = 'red')

s设置大小 c设置颜色

还有很多其他参数: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.scatter

There are a whole bunch of other args as well: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.scatter

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