%GETFEATLAB Get feature labels of dataset
%
%   FEATLAB = GETFEATLAB(A,STRING)
%
% INPUT
%   A        Dataset
%   STRING   Indicate whether feature labels should be returned as strings
%            (if 'string' or 1), or not (default).
%
% OUTPUT
%   FEATLAB  Feature labels
%
% DESCRIPTION
% Returns the labels of the features of dataset A. If STRING equals 'string'
% or 1, the label list is converted to characters, which may be useful for
% display purposes and annotation of graphs.