我有一个datetime对象的排序列表,如下所示:
X = [datetime.date(2017, 1, 14), datetime.date(2017, 1, 14), datetime.date(2017, 1, 16), datetime.date(2017, 1, 16), datetime.date(2017, 1, 18), datetime.date(2017, 1, 22), datetime.date(2017, 1, 24), datetime.date(2017, 1, 24), datetime.date(2017, 1, 29), datetime.date(2017, 2, 4), datetime.date(2017, 2, 10), datetime.date(2017, 2, 22), datetime.date(2017, 2, 28), datetime.date(2017, 3, 8), datetime.date(2017, 3, 28), datetime.date(2017, 4, 17), datetime.date(2017, 4, 20), datetime.date(2017, 4, 20), datetime.date(2017, 5, 16), datetime.date(2017, 5, 26), datetime.date(2017, 6, 12), datetime.date(2017, 6, 23), datetime.date(2017, 6, 28), datetime.date(2017, 7, 28), datetime.date(2017, 8, 14), datetime.date(2017, 8, 29), datetime.date(2017, 8, 29), datetime.date(2017, 9, 26), datetime.date(2017, 10, 4), datetime.date(2017, 10, 5), datetime.date(2017, 10, 8), datetime.date(2017, 11, 20), datetime.date(2017, 12, 2), datetime.date(2017, 12, 11), datetime.date(2017, 12, 11), datetime.date(2018, 2, 14), datetime.date(2018, 2, 16), datetime.date(2018, 3, 2), datetime.date(2018, 3, 5), datetime.date(2018, 3, 28)]
目标是绘制一个折线图,其中X轴为日期,Y轴为每个日期在列表中出现的次数。我知道获取折线图的最蹩脚的方法是从X中删除重复项,然后生成另一个列表Y,其中包含X中每个datetime对象的频率,并执行
plt.plot(X,Y)
但是有没有一种更聪明/更像蟒蛇的方法呢?
我已经读过了
Plotting time in Python with Matplotlib
,但这没有帮助。