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Table 3 Results of discriminant function analysis on hoo call contexts for males and females

From: Context-specific close-range “hoo” calls in wild gibbons (Hylobates lar)

Function Eigenvalue (F/M) % of Variance (F/M) Wilks’ Lambda sig. tests of functions (F/M) Correlation between variable and function (F/M)
1 0.45/0.58 79.2/66.7 <0.001/<0.001 (Function 1–3) intercall interval (−0.68/0.63)
2 0.12/0.23 20.8/26.7 <0.001/<0.001 (Function 2–3) low frequency (0.86)/delta frequency (−0.67)
3 NA/0.06 NA/6.6 NA/0.017 (Function 3) NA/low frequency (0.50)
  1. F = female, M = male.