R：在 r 中创建一个新列，其中包含来自另一列的连接值

Question

Here is a test dataset with one column of company names.

df <- data.frame(companyName= c("Apple", "Microsoft", "Perspectives", "Jet", "Icontel AG","Intel"))

I would like to concatenate these names and add them to a new column in the dataframe

I tried the following using a for loop:

df$contain <- NA #create a new column

df$contain <- for (i in 1:nrow(df)){
  paste('Contains(TR.CommonName,\'', df[i,1], '\')')
  }

The prompt is not giving me any error and the command above is simply deleting the new created column. I could not figure out what I am doing wrong and any help is appreciated.

my desired output would be

      companyName    contain
1     Apple          Contains(TR.CommonName,Apple)
2     Microsoft      Contains(TR.CommonName,Microsoft)
3     Perspectives   Contains(TR.CommonName,Perspectives)
4     Jet            Contains(TR.CommonName,Jet)
5     Icontel AG     Contains(TR.CommonName,Icontel AG)
6     Intel          Contains(TR.CommonName,Intel)

Answer 1

你可以简单地这样做：

df$contains <- paste0("Contains(TR.CommonName,", df$companyName, ")")