循環播放時間戳並通過在熊貓中應用一組過濾器創建數據幀

Question

我想循環播放時間戳並應用過濾器並基於這些過濾器創建單個數據幀。我有一個數據集，我必須在一個月內循環遍歷所有31天的每個小時，併爲31天的每個小時創建一個數據框。這裏是我的代碼，請給我提供建議

`df1 = df[df['Station'] == 'ANANDVIHAR'] 
for row in df1.iterrows(): 
y = y.hour 
    df2 = df1[(df1['FromTime'].apply(lambda x: x.hour) == 00) & (df1['Month'] == 'Dec')]` 

這裏是我的數據集

 
     Id  Station Month Concentration   FromTime 
0  1 ANANDVIHAR Dec  285.17 2015-12-01 00:00:00 
1  2 ANANDVIHAR Dec   260.5 2015-12-01 01:00:00 
2  3 ANANDVIHAR Dec  232.27 2015-12-01 02:00:00 
3  4 ANANDVIHAR Dec   225 2015-12-01 03:00:00 
4  5 ANANDVIHAR Dec  225.55 2015-12-01 04:00:00 
5  6 ANANDVIHAR Dec  232.82 2015-12-01 05:00:00 
6  7 ANANDVIHAR Dec  255.83 2015-12-01 06:00:00 
7  8 ANANDVIHAR Dec  292.67 2015-12-01 07:00:00 
8  9 ANANDVIHAR Dec  360.64 2015-12-01 08:00:00 
9  10 ANANDVIHAR Dec  386.33 2015-12-01 09:00:00 
10  11 ANANDVIHAR Dec  277.17 2015-12-01 10:00:00 
11  12 ANANDVIHAR Dec  243.83 2015-12-01 11:00:00 
12  13 ANANDVIHAR Dec  225.91 2015-12-01 12:00:00 
13  14 ANANDVIHAR Dec  234.73 2015-12-01 13:00:00 
14  15 ANANDVIHAR Dec  192.09 2015-12-01 14:00:00 
15  16 ANANDVIHAR Dec  192.64 2015-12-01 15:00:00 
16  17 ANANDVIHAR Dec  187.27 2015-12-01 16:00:00 
17  18 ANANDVIHAR Dec  179.67 2015-12-01 17:00:00 
18  19 ANANDVIHAR Dec   233 2015-12-01 18:00:00 
19  20 ANANDVIHAR Dec   268.8 2015-12-01 19:00:00 
20  21 ANANDVIHAR Dec   309 2015-12-01 20:00:00 
21  22 ANANDVIHAR Dec  296.67 2015-12-01 21:00:00 
22  23 ANANDVIHAR Dec   310 2015-12-01 22:00:00 
23  24 ANANDVIHAR Dec  314.73 2015-12-01 23:00:00 
24  25 ANANDVIHAR Dec   334.5 2015-12-02 00:00:00 
25  26 ANANDVIHAR Dec  312.67 2015-12-02 01:00:00 
26  27 ANANDVIHAR Dec  234.33 2015-12-02 02:00:00 
27  28 ANANDVIHAR Dec   200 2015-12-02 03:00:00 
28  29 ANANDVIHAR Dec  207.83 2015-12-02 04:00:00 
29  30 ANANDVIHAR Dec   264.5 2015-12-02 05:00:00 
... ...   ... ...   ...     ... 

Answer 1

所以......這樣的事情？

dfs = [] 
for hour in range(24): 
    dfs.append(df1[(df1['FromTime'].apply(lambda x: x.hour) == hour) & (df1['Month'] == 'Dec')])