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Table 1 Collinearity among the coefficients of the harmonic regression of T, NDVI, and LAI

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

  T1 T2 T3 T4 T5 T6 T7 NDVI1 NDVI2 NDVI3 NDVI4 NDVI5 NDVI6 NDVI7 LAI1 LAI2 LAI3 LAI4 LAI5 LAI6
T2 1.03                    
T3 1.85 1.20                   
T4 1.00 1.03 1.00                  
T5 1.37 1.02 1.01 1.07                 
T6 1.02 1.00 1.00 1.00 1.02                
T7 1.37 1.02 1.26 1.02 1.07 1.00               
NDVI1 1.01 1.00 1.17 1.00 1.00 1.00 1.02              
NDVI2 1.05 1.29 1.02 1.04 1.00 1.00 1.01 1.00             
NDVI3 3.00 1.15 1.85 1.04 1.08 1.02 1.33 1.01 1.16            
NDVI4 1.00 1.00 1.01 1.03 1.04 1.07 1.01 1.06 1.04 1.01           
NDVI5 1.59 1.01 1.20 1.01 1.32 1.01 1.28 1.11 1.02 1.48 1.19          
NDVI6 1.28 1.01 1.11 1.01 1.04 1.01 1.22 1.00 1.03 1.40 1.02 1.09         
NDVI7 1.05 1.00 1.02 1.00 1.13 1.00 1.00 1.07 1.00 1.01 1.22 1.27 1.04        
LAI1 1.00 1.00 1.07 1.01 1.23 1.00 1.01 3.18 1.00 1.02 1.00 1.01 1.00 1.01       
LAI2 1.19 1.07 1.16 1.00 1.00 1.00 1.17 1.01 1.45 1.08 1.06 1.01 1.10 1.01 1.03      
LAI3 1.43 1.22 1.22 1.01 1.02 1.01 1.00 1.01 1.19 2.28 1.07 1.03 1.07 1.00 1.00 1.00     
LAI4 1.40 1.01 1.16 1.05 1.02 1.00 1.17 1.00 1.01 1.26 1.18 1.01 1.30 1.03 1.00 1.61 1.11    
LAI5 1.21 1.02 1.10 1.00 1.06 1.00 1.02 1.00 1.03 1.29 1.00 1.36 1.03 1.02 1.01 1.00 1.45 1.01   
LAI6 1.11 1.01 1.02 1.01 1.01 1.01 1.05 1.00 1.00 1.07 1.00 1.03 1.40 1.00 1.00 1.05 1.07 1.36 1.06  
LAI7 1.00 1.00 1.00 1.00 1.00 1.01 1.02 1.00 1.00 1.00 1.01 1.04 1.00 1.13 1.00 1.02 1.00 1.03 1.08 1.00
  1. Collinearity was calculated as the variance inflation factor. Values lower than 10 are indicative of low collinearity and could be used together in models of the environmental niche. The number after the letters of the variables indicates the ordinal coefficient in the harmonic regression of the variable.