%GETLAB Get labels of dataset or mapping%%  LABELS = GETLAB(A)%  LABELS = GETLAB(W)%% INPUT%  A      Dataset%  W      Mapping%% OUTPUT%  LABELS Labels%% DESCRIPTION% Returns the labels of the objects in the dataset A or the feature labels% assigned by the mapping W.%% If A (or W) is neither a dataset nor a mapping, a set of dummy% labels is returned, one for each row in A. All these labels have the% value NaN.%% Note that for datasets and mappings GETLAB() is effectively the same% as GETLABELS().%% SEE ALSO% DATASETS, MAPPINGS, GETLABELS% Copyright: R.P.W. Duin, duin@ph.tn.tudelft.nl% Faculty of Applied Sciences, Delft University of Technology% P.O. Box 5046, 2600 GA Delft, The Netherlands% $Id: getlab.m,v 1.4 2003/08/18 12:29:56 pavel Exp $function labels = getlab(a)	prtrace(mfilename);	if isa(a,'dataset')		labels = getlabels(a,'crisp');	elseif isa(a,'mapping')		labels = getlabels(a);	else		labels = repmat(NaN,size(a,1),1);	end	return