Get numeric labels
[NLAB,LABLIST] = GETNLAB(A)
The numeric labels of the dataset A are returned in NLAB. These are pointers to the list of labels LABLIST, so LABLIST(NLAB(i)) is the label of object i. Note, however, that unlabeled objects or objects with a special label indication to be set by the user, may have numeric labels NLAB <= 0. Note also that for labels of type 'targets' the numeric labels NLAB are all set to 0.