Balance-dendrogram. A new routine of CoDaPack
A statistical analysis of compositional data based on the Aitchison geometry of the simplex requires an appropriate basis for representing the data. A simple and intuitive way of building such a basis employs a sequential binary partition of the compositional vector. The partition, together with some statistical Summaries of the coordinates, or balances, can be represented in a dendrogram-type graph. In this paper we introduce an implementation of this methodology inside CoDaPack, which is freeware. An example with real data illustrates the use of the Balance-Dendrogram routine. (c) 2008 Elsevier Ltd. All rights reserved.
balance codapack composition aitchison geometry simplex isometric log-ratio transform