Set NA for the values of x that contain a single repeating character and
no other characters.
Usage
na_rep(x, n = 0)
Value
The vector x with NA replacing repeating character values.
Arguments
x
A vector to check.
n
The minimum number times a character must repeat. If 0, the default,
then any string of one character will be replaced with NA. If greater
than 0, the string must contain greater than n number of repetitions.