我想按周在python中汇总此表:
Date x y z
01/01/2016 0 0 1015
02/01/2016 0 0 1015
03/01/2016 0 0 1015
04/01/2016 5 0 1020
05/01/2016 6 1 1016
06/01/2016 9 3 1020
07/01/2016 4 0 1025
08/01/2016 2 5 1008
谢谢。
答案 0 :(得分:3)
首先通过reactstrap将列转换为日期时间,然后通过sum
与to_datetime
进行汇总:
df['Date'] = pd.to_datetime(df['Date'], format='%d/%m/%Y')
print (df)
Date x y z
0 2016-01-01 0 0 1015
1 2016-01-02 0 0 1015
2 2016-01-03 0 0 1015
3 2016-01-04 5 0 1020
4 2016-01-05 6 1 1016
5 2016-01-06 9 3 1020
6 2016-01-07 4 0 1025
7 2016-01-08 2 5 1008
df1 = df.groupby(df['Date'].dt.weekofyear).sum()
print (df1)
x y z
Date
1 26 9 5089
53 0 0 3045
df2 = df.groupby(df['Date'].dt.dayofweek).sum()
print (df2)
x y z
Date
0 5 0 1020
1 6 1 1016
2 9 3 1020
3 4 0 1025
4 2 5 2023
5 0 0 1015
6 0 0 1015