在Python中的DataFrame中选择具有特定工作日的行 [英] Selecting rows with a certain weekday in DataFrame in Python

问题描述

我有一个带有时间索引的DataFrame，如:

I have a DataFrame with time index like:

df.index = [2013-09-09 06:23:18, 2013-09-10 07:09:05, ..., 2014-02-02 06:04:04]

如何在某些工作日(如星期一)中选择行?然后，我将在其他工作日没有行.任何帮助表示赞赏.

How could I choose rows in certain weekday, like Monday? Then I won't have the rows in other weekdays. Any help appreciated.

推荐答案

您可以通过df.index.weekday获取工作日，请注意Monday = 0和Sunday = 6

You can get the weekday by df.index.weekday, note that Monday = 0 and Sunday = 6

要选择星期一的行，您可以

To select the rows on Monday, you can do

df = df[df.index.weekday==0]

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