I'm trying to separate each of the values in a list with a comma. For example, instead of 'item1''item2', I am looking for 'item1','item2'.

Here is what I am working with:

combos <- lapply(2:4, function(x) combn(c("item1","item2","item3","item4"), x, simplify = FALSE))
combos <- unlist(combos, recursive = FALSE)

Thank you!

CodePudding user response：

We loop over the list with lapply and paste with toString

lapply(combos, toString)