嗨我需要計算一些實驗的累積昆蟲日。這是我的數據幀是什麼樣子如何使用r來計算累計昆蟲天數?
Rep trt date BLB
1 I 1 7/12/2017 3
2 I 2 7/12/2017 2
3 I 3 7/12/2017 4
4 I 4 7/12/2017 0
5 II 1 7/12/2017 1
6 II 2 7/12/2017 2
7 II 3 7/12/2017 2
8 II 4 7/12/2017 1
9 III 1 7/12/2017 3
10 III 2 7/12/2017 2
11 III 3 7/12/2017 1
12 III 4 7/12/2017 1
13 IV 1 7/12/2017 0
14 IV 2 7/12/2017 3
15 IV 3 7/12/2017 3
16 IV 4 7/12/2017 0
17 I 1 7/20/2017 12
18 I 2 7/20/2017 6
19 I 3 7/20/2017 7
20 I 4 7/20/2017 18
21 II 1 7/20/2017 17
22 II 2 7/20/2017 11
23 II 3 7/20/2017 25
24 II 4 7/20/2017 17
25 III 1 7/20/2017 18
26 III 2 7/20/2017 6
27 III 3 7/20/2017 48
28 III 4 7/20/2017 13
29 IV 1 7/20/2017 7
30 IV 2 7/20/2017 22
31 IV 3 7/20/2017 18
32 IV 4 7/20/2017 11
33 I 1 7/27/2017 1
34 I 2 7/27/2017 3
35 I 3 7/27/2017 4
36 I 4 7/27/2017 0
37 II 1 7/27/2017 1
38 II 2 7/27/2017 0
39 II 3 7/27/2017 1
40 II 4 7/27/2017 0
41 III 1 7/27/2017 1
42 III 2 7/27/2017 1
43 III 3 7/27/2017 0
44 III 4 7/27/2017 0
45 IV 1 7/27/2017 1
46 IV 2 7/27/2017 0
47 IV 3 7/27/2017 1
48 IV 4 7/27/2017 2
49 I 1 8/2/2017 0
50 I 2 8/2/2017 0
51 I 3 8/2/2017 1
52 I 4 8/2/2017 0
53 II 1 8/2/2017 0
54 II 2 8/2/2017 0
55 II 3 8/2/2017 0
56 II 4 8/2/2017 0
57 III 1 8/2/2017 1
58 III 2 8/2/2017 0
59 III 3 8/2/2017 0
60 III 4 8/2/2017 0
61 IV 1 8/2/2017 0
62 IV 2 8/2/2017 0
63 IV 3 8/2/2017 0
64 IV 4 8/2/2017 2
結構將是:
data.frame': 64 obs. of 4 variables:
$ Rep : Factor w/ 4 levels "I","II","III",..: 1 1 1 1 2 2 2 2 3 3 ...
$ trt : Factor w/ 4 levels "1","2","3","4": 1 2 3 4 1 2 3 4 1 2 ...
$ date: Factor w/ 4 levels "7/12/2017","7/20/2017",..: 1 1 1 1 1 1 1 1 1 1 ...
$ BLB : int 3 2 4 0 1 2 2 1 3 2 ...
要做到這一點,我需要計算昆蟲的平均值爲不同的處理日期的每個組合。例如,我必須計算每次治療的日期7/12和7/20之間的每一次。然後我需要計算日期7/20和7/27之間的平均值等等。有沒有人知道如何使用r軟件來做到這一點?我真的很感謝幫助!
那麼你是否將7/12和7/20視爲一組?另有7/20和7/27? – useR
是的,我將兩個日期的每個組合作爲一個組對待! – Obiratanea
下次你可以使用'dput(dataframe)'? – CPak