View source: R/unused-letters.R
unused_letters | R Documentation |
Returns letters not used in strings
unused_letters(
s,
n = 1,
avoid_strifrtf_internal = TRUE,
as_number = FALSE,
as_vector = FALSE
)
s |
character vector |
n |
number of letters to return |
avoid_strifrtf_internal |
If |
as_number |
if |
as_vector |
if |
This function can be useful when some special characters must be temporarily converted to another letter without being confused with the same letters used elsewhere.
Letters are first searched from \u0001
upto \uffff
.
Do not specify too large n
; An error is raised if a sufficient number of unsed letters are not found.
unsed characters, format depends on as_number
and as_vector
arguments
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