id summary reporter owner description type status milestone component version severity resolution keywords cc 1921 _ArrayUnique BrewManNH "It states in the help file that _ArrayUnique ""Returns the Unique Elements of a 1-dimensional array."", fundamentally this is incorrect. What _ArrayUnique does is it returns a 1-dimensional array, while the incoming array can be multi-dimensioned. If you use the $iDimension parameter you can tell it to only return the unique items on whichever column you'd like. See the example below, it will return the unique items from the 3rd column (first column is 1 when using _ArrayUnique) {{{ #include Local $Array[4][6] = [[""FirstName"", ""LastName"", ""IDNumber"", ""Location"", ""Grade"", ""Action""],[""john"", ""smith"", ""111222"", ""Denver"", ""2"", ""enroll""],[""jack"", ""jones"", ""333444"", ""denver"", ""4"", ""withdraw""],[""jack"", ""jones"", ""333444"", ""lasvegas"", ""4"", ""enroll""]] _ArrayDisplay($Array) $Array = _ArrayUnique($Array, 3) _ArrayDisplay($Array) }}} It would be nice if the documentation could be changed to reflect the true usage of the function." Bug closed Documentation 3.3.6.1 None Wont Fix