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Returns TRUE if x contains any instances of dk
has_dont_know(x, dk = "Don't Know")
Character vector or factor
Character vector, containing search terms, e.g. c("Don't know", "Don't Know")
c("Don't know", "Don't Know")
TRUE or FALSE
Other Functions to clean data: encToInt, fix_common_encoding_problems, fix_levels_01_spss, intToEnc, leveltest, remove_all_dont_know, remove_dont_know
encToInt
fix_common_encoding_problems
fix_levels_01_spss
intToEnc
leveltest
remove_all_dont_know
remove_dont_know