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Table 3 Collinearity among the monthly values of the normalised difference vegetation index

From: A global set of Fourier-transformed remotely sensed covariates for the description of abiotic niche in epidemiological studies of tick vector species

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
Feb 35.82           
Mar 15.40 31.65          
Apr 5.09 6.05 10.50         
May 1.74 2.04 2.31 4.27        
Jun 1.13 1.23 1.27 1.53 3.75       
Jul 1.06 1.10 1.13 1.25 2.09 11.21      
Aug 1.11 1.16 1.18 1.32 2.21 7.43 24.85     
Sep 1.59 1.75 1.81 2.33 4.36 3.75 3.06 4.55    
Oct 2.54 2.66 2.80 4.26 4.67 1.97 1.57 1.88 7.74   
Nov 6.11 4.97 5.50 7.58 2.87 1.37 1.20 1.33 2.87 8.89  
Dec 31.42 12.00 9.80 4.95 1.79 1.22 1.14 1.20 1.75 2.79 9.14
  1. Eight-day-interval MODIS-derived series of values were converted to monthly composites and collinearity calculated as the variance inflation factor. Values higher than 10 are indicative of high collinearity.