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Table 1 Percentage of total variation, eigenvalues and eigenvectors for the first two PCA axes of functional units in macaques. The eigenvectors reaching significant contribution level are in bold *.

From: Craniodental variation among Macaques (Macaca), nonhuman primates

Mandible Upper teeth    
  1 2   1 2 BIORBW .855 .236
Eigenvalue 11.66 1.13 Eigenvalue 10.33 64.60 INTORBW .770 .576
Percentage 72.9 7.0 Percentage 64.6 9.8 PIRH .903 -.008
Cum. Per 72.9 79.9 Cum. Per 64.6 74.4 PIRW .760 -.419
       UFACEH .886 -.249
Eigenvectors    Eigenvectors    INFRMAL .938 .105
       BIZYGW .939 -.053
LBCB .821 .468 UI1MDL .534 .521    
LBMB .913 .006 UI2MDL .714 .082 Calvaria   
LIAW .584 .697 UCMDL .658 .532   1 2
CONDYLL .674 -.084 UP3MDL .707 .030 Eigenvalue 3.98 .88
CONDYLW .870 -.200 UP4MDL .875 -.163 Percentage 56.9 12.6
CONM1 .959 -.127 UM1MDL .874 -.181 Cum. per 56.9 69.4
CONM3 .907 -.149 UM2MDL .897 -.249    
MAM1 .794 -.372 UM3MDL .890 -.235 Eigenvectors   
MAT .789 -.139 UI1BLL .621 .571    
MANDLAL .950 .033 UI2BLL .809 .246 CALVL .889 -.177
MANDH .921 -.090 UCBLL .706 .449 BPORW .626 -.189
MANDSYM .910 .207 UP3BLL .874 -.011 MIDPARW .845 .003
BICONDY .944 -.171 UP4BLL .876 -.097 POSTORB .631 -.252
MANCORW1 .835 -.155 UM1BLL .885 -.294 OCCH .673 -.318
SYMWID .900 .045 UM2BLL .905 -.292 FORMAGL .630 .526
LTRLALV .793 .265 UM3BLL .897 -.252 FORMAGW .611 .609
Lower teeth Maxilla Cranium
  1 2   1 2   1 2
Eigenvalue 9.87 1.81 Eigenvalue 4.72 .60 Eigenvalue 6.41 .76
Percentage 61.7 11.3 Percentage 78.6 10.0 Percentage 80.1 9.6
Cum. Per 61.7 73.0 Cum. Per 78.6 88.6 Cum. per 80.1 89.1
Eigenvectors    Eigenvectors    Eigenvectors   
LI1MDL .437 .616 MUZL .943 -.083 BCRANL .954 .017
LI2MDL .635 .346 PALLENG .657 -.106 CRANL .964 -.044
LCMDL .657 .379 PALWID .896 -.157 CRANW .935 .096
LP3MDL .690 .473 UBCB .922 -.037 BIYGW .956 -.050
LP4MDL .870 -.094 UBMB .893 -.158 POSTORB .576 .774
LM1MDL .862 -.147 UIAW .680 .729 OCCH .736 -.369
LM2MDL .896 -.292     ANTBASI .976 -.098
LM3MDL .885 -.313 Upper face      
LI1BLL .618 .341   1 2    
LI2BLL .782 .165 Eigenvalue 6.02 .67    
LCBLL .641 .457 Percentage 75.2 8.3    
LP3BLL .877 .099 Cum. Per 75.2 83.6    
LP4BLL .892 -.194       
LM1BLL .861 -.338 Eigenvectors      
LM2BLL .893 -.334       
LM3BLL .882 -.310 MUZL .869 -.170    
  1. *: Definitions of the variables are listed in the appendix.