[英]How to keep every fifth row (and deleting all the others) in a file Excel?
How to keep every fifth row (and deleting all the others) in a file Excel? 如何在文件Excel中保留第五行(并删除所有其他行)? For example, I have a starting file like this: 例如,我有一个像这样的起始文件:
07/12/1989 106,9
08/12/1989 106,05
12/12/1989 103,1
13/12/1989 106,5
14/12/1989 104,75
15/12/1989 105,6
18/12/1989 104,5
19/12/1989 106,2
20/12/1989 106,5
21/12/1989 107,5
22/12/1989 109,8
and I would like the result: 我想要结果:
07/12/1989 106,9
15/12/1989 105,6
22/12/1989 109,8
Try this: 尝试这个:
Step 1: Read excel file in R using read.xlsx
步骤1:使用read.xlsx
在R中读取excel文件
Step 2: Generate the sequences and then retrieve rows based on sequences 步骤2:生成序列,然后根据序列检索行
indexes<-seq(1,nrow(df),5) # Set index
df[indexes,] # Retrive only index
Output: 输出:
V1 V2
1 07/12/1989 106,9
6 15/12/1989 105,6
11 22/12/1989 109,8
Step 3: Store this result to excel file using write.xlsx
步骤3:使用write.xlsx
结果存储到excel文件中
Let assume you have this dataset: 假设您具有以下数据集:
dt<-data.frame(ID=LETTERS, stringsAsFactors = F)
Then you can do: 然后,您可以执行以下操作:
as.data.frame( dt[ 1:nrow(dt) %% 5 ==0,])
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