
Count the words in a vector that don't intersect with another vector (only counts unique words).
str_count_setdiff(x, y)
A vector of words.
A vector of words to test against.
A number, the count of unique words in x not also in y
# NOT RUN {
str_count_setdiff(
x = c("a", "dog", "dog", "went", "to", "the", "store"),
y = c("dog", "to", "store")
)
# }
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