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Table 1 Summed loadings of landmarks from each vertebra on the whole-column PCA

From: Adaptation and constraint in the evolution of the mammalian backbone

 

Tot Var.

T1

Mid-T

Dia

Ant L

Last L

PC1

30.0%

22.0%

23.2%

16.1%

20.6%

18.2%

PC2

13.5%

17.2%

9.6%

17.2%

29.6%

26.4%

PC3

7.5%

25.9%

23.5%

20.2%

16.3%

14.1%

  1. Tot var. Total variation explained by that PC, T1 First thoracic, Mid-T mid-thoracic, Dia diaphragmatic, Ant L anterior lumbar, Last L last lumbar
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BMC Ecology and Evolution

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