Chapter 2 . Unsupervised Artificial Neural Networks
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Figure 2.1. Dendrogram for clustering the ten upland forest communities: data
from Ludwig and Reynolds (1988), dendrogram from Chon et al. (1996)
Table 2.2. Data matrix of abundances for eight trees in 10 upland forest sampling
units, southem Wisconsin Peet and Loucks (1977)
Species
Sampie Units
Name
Number Sul SU2 SU3 SU4 sm SU6 SU7 SU8 SU9 SulO
Buroak
(1)
9
8
3
5
6
0
5
0
0
0
Black oak
(2)
8
9
8
7
0
0
0
0
0
0
White oak
(3)
5
4
9
9
7
7
4
6
0
2
Redoak
(4)
3
4
0
6
9
8
7
6
4
3
American elm (5)
2
2
4
5
6
0
5
0
2
5
Basswood
(6)
0
0
0
0
2
7
6
6
7
6
Ironwood
(7)
0
0
0
0
0
0
7
4
6
5
Sugar maple (8)
0
0
0
0
0
5
4
8
8
9
Soil texture
4
5
3
2
1
2
1
1