Question

Say I have two lists:

  a = list(1,2)
  b = list("x","y")
        #a
        #[[1]]
        #[1] 1

        #[[2]]
        #[1] 2

        #b
        #[[1]]
        #[1] "x"

        #[[2]]
        #[1] "y"

I would like the following result:

        #[[1]]
        #[1] "1x"

        #[[2]]
        #[1] "2y"

I tried the following:

  lapply(a, paste, b)

But the result was not what I expected:

        #[[1]]
        #[1] "1 x" "1 y"

        #[[2]]
        #[1] "2 x" "2 y"

I wonder if there is any way to get the desired result – without resorting to any added package or loop.

Thank you in advance!!!

Answer 1

Here is one suggestion:

as.list(paste(a,b, sep=""))
[[1]]
[1] "1x"

[[2]]
[1] "2y"