+/* This class is a child to datavector. It represents OTU information at a certain distance.
+ A order vector can be converted into and listvector, rabundvector or sabundvector.
+ Each member of the internal container "data" represents the OTU from which it came.
+ So in the example below since there are 6 sequences in OTU 1 there are six 1's in the ordervector.
+ and since there are 2 sequences in OTU 3 there are two 3's in the ordervector.
+ example: listvector = a,b,c,d,e,f g,h,i j,k l m
+ rabundvector = 6 3 2 1 1
+ sabundvector = 2 1 1 0 0 1
+ ordervector = 1 1 1 1 1 1 2 2 2 3 3 4 5 */
+