Why doesn't this returning of multiple values of work?

Question

return_sum_diff <- function(a,b){return(list(a+b,a-b))}
list[t1,t2] = return_sum_diff(1,2)

It fails with the error

Error in list[t1, t2] <- return_sum_diff(2, 2) : object 't1' not found

I was trying to implement the solution here for returning multiple arguments.

I guess in R you cant assign like that. just assign like `a <- return_sum_diff(1,2)` — Koundy, Apr 23 '15 at 09:24
So why do you need `list[t1,t2]` for? It happens without it. Just `return_sum_diff(1,2)` gives you what you want. I'm confused. — David Arenburg, Apr 23 '15 at 09:34
Are you suggesting a solution like a <- return_sum_diff(1,2) and then t1=a[1] and t2=a[2] — dineshdileep, Apr 23 '15 at 09:43

score 1 · Answer 1 · answered Apr 23 '15 at 09:24

1

I guess in R you cant assign like that. just assign like a <- return_sum_diff(1,2) Here a will be a list with two values.

If u want a named list, modify function as follows

return_sum_diff <- function(a,b){return(list(t1 = a+b, t2 = a-b))}

answered Apr 23 '15 at 09:24

Koundy

1 Answers1