用R创建字母的顺序列表 [英] Creating a sequential list of letters with R

问题描述

我希望能够在R中创建字母序列（以帮助从SPSS文件导入数据）

I would like to be able to create a sequence of letters in R (to assist in importing data from a SPSS file)

创建序列很容易的数字，例如：

It's quite easy 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

但是有没有附加，粘贴或创建字母序列的功能？

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

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

谢谢！

推荐答案

这是您要查找的内容：

> 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"

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