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Table 3 Adjusted Rand index (ARI) values for all cluster solutions in B. hyrcana (section A) and T. baccata (section B) datasets. Ranks (1 to 9) are indicated in parentheses

From: The assignment of relevés to pre-existing vegetation units: a comparison of approaches using species fidelity

Classification solutions

Modified TWINSPAN

K-means

PAM

Median of ranks

(Section A)

    

  FPFI

0.26 (6)

0.37 (7)

0.20 (9)

7 (7.5)

  \(IndVal_{ind}\)

0.40 (5)

0.43 (2)

0.38 (3)

3 (2.5)

  \(IndVal_{ind}^{g}\)

0.51 (1.5)

0.60 (1)

0.44 (1)

1 (1)

  \(IndVal_{pa}\)

0.18 (9)

0.38 (6)

0.27 (8)

8 (9)

  \(IndVal_{pa}^{g}\)

0.48 (3)

0.23 (9)

0.40 (2)

3 (2.5)

  \(r_{ind}\)

0.25 (7.5)

0.39 (4.5)

0.34 (5.5)

5.5 (6)

  \(r_{ind}^{g}\)

0.25 (7.5)

0.39 (4.5)

0.36 (4)

4.5 (5)

  \(r_{\phi }\)

0.51 (1.5)

0.36 (8)

0.32 (7)

7 (7.5)

  \(r_{\phi }^{g}\)

0.45 (4)

0.40 (3)

0.34 (5.5)

4 (4)

(Section B)

    

  FPFI

0.39 (9)

0.59 (6)

0.39 (9)

9 (9)

  \(IndVal_{ind}\)

0.69 (3)

0.75 (4)

0.44 (8)

4 (4)

  \(IndVal_{ind}^{g}\)

0.72 (1)

0.77 (1)

0.67 (1)

1 (1)

  \(IndVal_{pa}\)

0.47 (6)

0.61 (5)

0.53 (6)

6 (5)

  \(IndVal_{pa}^{g}\)

0.46 (7)

0.48 (9)

0.64 (3)

7 (7)

  \(r_{ind}\)

0.42 (8)

0.57 (7)

0.57 (5)

7 (7)

  \(r_{ind}^{g}\)

0.52 (5)

0.53 (8)

0.52 (7)

7 (7)

  \(r_{\phi }\)

0.69 (3)

0.76 (3)

0.65 (2)

3 (3)

  \(r_{\phi }^{g}\)

0.71 (2)

0.76 (2)

0.64 (3)

2 (2)