A value of a sequence = ( 1 , 2 , . . . , ) of elements of a finite metric space ( , ) is an element for which ∑ =1 ( , ) is minimum. The ℓ -function with domain the set of all finite sequences on and defined by ℓ ( ) = { : is a value of } is called the ℓ -function on ( , ). The ℓ 1 and ℓ 2 functions are the well-studied median and mean functions, respectively. In this note, simple characterizations of the ℓ -functions on the -cube are given. In addition, the center function (using the minimax criterion) is characterized as well as new results proved for the median and antimedian functions.