CODEWITHSUNDEEP
r
Vasile
Vasile

Reputation: 1017

How to split the code over several lines in R Studio

I have the following code that identifies which variables from two columns in dataframe 'prep' are not in a certain column of dataframe 'results':

unique(c(as.character(prep$player1), as.character (prep$player2))) [!unique(c(as.character(prep$player1), as.character (prep$player2)))%in% results$names]

It works well when it is on one line. But I want it to run at least over two lines to make it easier to see it. I tried

unique(c(as.character(prep$player1), as.character (prep$player2)))+
[!unique(c(as.character(prep$player1), as.character (prep$player2)))%in% results$names]

and

 unique(c(as.character(prep$player1), as.character (prep$player2)))
+[!unique(c(as.character(prep$player1), as.character (prep$player2)))%in% results$names]

I get the error: unexpected '[' in "[" and unexpected '[' in "+[" Can you help me break the code. Thanks

Upvotes: 1

Views: 642

Answers (1)

akrun
akrun

Reputation: 887048

If we want to run iin multiple lines, use, just split after the [ (also the + may be the artifact from copying the code from console)

unique(c(as.character(prep$player1), as.character (prep$player2)))[
  !unique(c(as.character(prep$player1),
       as.character (prep$player2)))%in% results$names]

In R 4.1.0, we can also use |> for chaining

unique(c(as.character(prep$player1), as.character (prep$player2))) |>
   {\(dt) dt[!unique(c(as.character(prep$player1), 
            as.character (prep$player2)))%in% results$names]}()

Upvotes: 1

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