Samples in each group in Fig. 3 are listed in Table 3.
From this table and Þgure, one can conclude that
samples from Durbach have obvious features which
form a separate group; samples from Freyburg-
Silvaner also tend to cluster into a single group; other
samples from the other Þve categories (i.e., exception
for DurbachÕs samples) show some overlap. It appears
to be di¦cult to directly classify all wine samples by
only using the WardÕs cluster technique