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Table 7 Discriminant function analysis (DFA) of calls a1–a8. Eigenvalues, percent variance, and standardized canonical discriminant function coefficients of functions and parameters

From: A small vocal repertoire during the breeding season expresses complex behavioral motivations and individual signature in the common coot

Functions

Eigenvalue

Percent variance

(%)

Peak frequency (PF, Hz)

Fundamental frequency (F0, Hz)

Maximum frequency of F0 (F0max, Hz)

Minimum frequency of F0 (F0min, Hz)

Duration of syllable (T, s)

Interval of syllables (TI, s)

Function 1

5.225

63.7

0.229

−0.436

0.916

−0.711

− 0.608

0.903

Function 2

2.242

27.4

0.554

−0.548

0.938

0.149

0.421

0.017

Function 3

0.632

7.7

0.460

0.906

−0.212

−0.538

−0.003

− 0.168

Function 4

0.088

1.1

−0.376

0.595

−0.180

0.617

−0.164

0.179

Function 5

0.008

0.1

0.593

0.167

−0.787

0.417

0.244

0.469

Function 6

0.002

0.0

−0.312

0.901

0.134

−0.719

0.803

0.397