indexing
	description: "[
	
		A labeler object can be used to label a sequence of values

	]"
	author: ""
	date: "$Date$"
	revision: "$Revision$"

deferred class
	EM_VIZ_LABELER

feature -- Access

	label (an_index: INTEGER; a_value: DOUBLE): STRING is
			-- Label `a_value' at `an_index' in a sequence
		deferred
		ensure
			result_exists: Result /= Void
		end

end