[英]sort the column date/time data from csv file
hope to get your expert help, I did check on forums first.希望得到您的专家帮助,我确实先检查了论坛。 i am a beginner using repl.it (Python 3.8.2), and the first time use pandas.
我是使用 repl.it (Python 3.8.2) 的初学者,第一次使用 pandas。 thanks in advance.
提前致谢。
Start_Date_Time column could not be sorted correctly by Python from old to new (even though it can be manually correctly sorted in csv file). Python 无法将 Start_Date_Time 列从旧到新正确排序(即使它可以在 csv 文件中手动正确排序)。 The Python output shows it is sorted by the first number of the cell (Australian format: dd/mm/yyyy)
Python output 显示它是按单元格的第一个数字排序的(澳大利亚格式:dd/mm/yyyy)
import pandas as pd
csv1 = pd.read_csv("scheduleList.csv")
sort_by_date = csv1.sort_values("Start_Date_Time")
print (sort_by_date)
Below is simplified csv data.下面是简化的 csv 数据。 I don't want to split the column of date and time, because want to later compare its value with the today's date and time (calculate the difference)
我不想拆分日期和时间的列,因为想稍后将其值与今天的日期和时间进行比较(计算差异)
Event Start_Date_Time Duration (mins)
A 1/06/2020 7:00 60
B 1/06/2020 12:30 60
C 2/06/2020 18:30 120
D 2/06/2020 16:00 45
E 5/06/2020 17:30 60
F 12/06/2020 12:30 60
G 7/06/2020 13:00 60
H 4/06/2020 18:00 60
I 6/06/2020 11:30 60
J 6/06/2020 8:00 180
K 11/06/2020 12:30 60
L 28/06/2020 11:00 300
M 18/07/2020 19:30 120
N 20/06/2020 9:00 60
O 31/05/2020 10:00 60
P 7/06/2020 10:00 60
Q 14/06/2020 10:00 60
Try the following code.试试下面的代码。 I have added a line to parse
Start_Date_Time
as a DateTime
column and also set ascending
parameter of the sort_values
method to False
.我添加了一行将
Start_Date_Time
解析为DateTime
列,并将sort_values
方法的ascending
参数设置为False
。
import pandas as pd
csv1 = pd.read_csv("scheduleList.csv")
csv1['Start_Date_Time'] = pd.to_datetime(csv1['Start_Date_Time']) # change over here
sort_by_date = csv1.sort_values("Start_Date_Time",ascending=False) # change over here
print (sort_by_date)
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.