The Good, the Bad, and the Ugly: Ordinal and Symbolic Whisky Analysis Francois-Joseph Lapointe
Resolution of the "total-evidence" versus "consensus" debate has been impeded by a failure to employ validation methods consistently across both tree-building and consensus analyses, and by the incomparability of methods for constructing as opposed to those for combining trees. I will show that a uniform, distance-based approach allows for comparability among the results both types of studies, and that the nal validated trees dier little in topology when branch lengths are taken into account. I will illustrate the method by applying it to three dierent data sets on single malt Scotch whiskies. Practically, the results arm some groupings not previously obtained by any of the independent data sets, the weak relationship among whiskies, and the discrepancies among the trees based on dierent tasters' notes.
Francois-Joseph Lapointe Dep. de sciences biologiques Universite de Montreal C.P. 6128, Succ. centre-ville Montreal, Quebec, H3C 3J7, Canada email: lapoinf @ere:umontreal:ca 1