Table 1 Correct classification of calls according to the valence and context of production by the pDFA.

From: Classification of pig calls produced from birth to slaughter according to their emotional valence and context of production

 

Valence

Context

LF

HF

LF

HF

No. valence/contexts category

2

2

19

16

No. individuals

392

261

392

261

Total No. calls

5391

1832

5391

1832

No. calls selected

236

80

597

355

Correctly classified (%)

81.32

96.59

20.24

36.6

Chance level (%)

54.62

59.55

12.31

24.81

P value for classified

0.001

0.001

0.001

0.001

Correctly cross-classified (%)

61.25

63.18

16.20

29.40

Chance level for cross-classified (%)

50.55

50.37

11.28

23.11

Relative cross-classification level

1.21

1.25

1.44

1.27

P value for cross-classified

0.004

0.169

0.003

0.017

  1. Results of the permuted discriminant function analysis (pDFA) for low-frequency calls (LF) and high-frequency calls (HF); number of valence or contexts included, number of individuals, total number of calls, number of calls selected, percentage of calls classified and cross-classified to the correct valence or context, and corresponding chance level (expected percentage of correctly classified calls based on the permutation test, averaged across the permutations), relative classification (percentage of calls cross-classified/chance level), and p value. The analysis was performed on the entire dataset, after excluding missing data (Sample size: calls in which AMRate could not be measured = 191; calls in the entire dataset = 7414; calls included for this analysis = 7223). Significant p values appear in bold.
Back to article page