Creating a sequential list of letters with R

Question

I want to be able to create a sequence of letters in R ,to assist in importing data from a SPSS file

It's convinient to create a sequence of numbers, for example

seq(1,1000)
[1] 1 2 3 4 5 6 ... 1000

paste("something_",1:12,sep="")
[1] something1 something2 ... something12

But is there any functionality wihch can be used for appending, pasting, or creating sequences of letters like this?

paste("This_",a:z,sep="")
[1]This_a This_b This_c ... This_4z

Answer 1

> paste("This_", letters, sep="")

> [1] "This_a" "This_b" "This_c" "This_d" "This_e" "This_f" "This_g" "This_h"
  [9] "This_i" "This_j" "This_k" "This_l" "This_m" "This_n" "This_o" "This_p"
  [17] "This_q" "This_r" "This_s" "This_t" "This_u" "This_v" "This_w" "This_x"
  [25] "This_y" "This_z"

Answer 2

What you seek is as follows:

"This_", letters, sep="")

This a, This b, This c, This d, This e, This f, This g, and This h are listed in order.

This I, This J, This K, This L, This M, This N, This O, and This P.

[17] This q, This r, This s, This t, This u, This v, This w, and This x

[25] This y and This z