is there a way to extend LETTERS past 26 characters e.g., AA, AB, AC…?

Question

I use LETTERS most of the time for my factors but today I tried to go beyond 26 characters:

LETTERS[1:32]

Expecting there to be an automati

Answer 1

A little late to the party, but I want to play too.

You can also use sub, and sprintf in place of paste0 and get a length 702 vector.

c(LETTERS, sapply(LETTERS, sub, pattern = " ", x = sprintf("%2s", LETTERS)))