Table 2

MANOVA results.

Sorted Dimension

P

% Variance

Function Loadings


1

< 10-3

42.1

0.860 Mean S + 0.676 Mean F + 0.363 Min F


2

< 10-3

22.2 (64.3)

1.011 SD S - 0.787 Dur - 0.493 Q3


3

< 10-3

11.6 (75.9)

1.449 SD S - 1.200 Ent - 1.187 Mean F


4

< 10-3

8.2 (84.1)

1.393 Skew + 0.870 Ent - 0.831 Kurt


5

< 10-3

6.5 (90.6)

1.142 Skew + 1.001 CV F + 0.733 Q2


6

< 10-3

3.2 (93.8)

1.539 Kurt + -1.537 Max F - 1.520 Skew


7

< 10-3

2.6 (96.4)

-1.304 Mean F + 1.036 Q3 + 0.937 Q1


8

0.006

1.3 (97.7)

-7.824 Mean S + 3.597 Q3 + 2.053 Q2


The table shows the loading factors for the 8 significant linear discriminant functions that can be used to classify giggles notes by individual. Since the discriminant analysis is performed on z-scores and the functions are normalized so that the within-individual variance is 1, the coefficient of the loadings can be used to measure the effect of each acoustical parameter. The % variance is the percent of the between-individual variance of means that is explained. The number in parentheses is the cumulative variance explained.

Mathevon et al. BMC Ecology 2010 10:9   doi:10.1186/1472-6785-10-9

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