Exeter Software

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SYNTAX 2000 coefficients

Coefficients for binary (presence/absence) data

bulletPHI                
bulletYule    
bulletJaccard           
bulletSimple matching          
bulletRussell & Rao 
bulletSorensen        
bulletRogers & Tanimoto    
bulletBaroni-Urbani & Buser          
bulletOchiai                        
bulletAnderberg #1    
bulletAnderberg #2 
bulletKulczynski (symmetric)           
bulletSokal & Sneath
bulletChord distance (binary case)
bulletFaith   
bulletEuclidean distance (binary case)

  Coefficients for ordinal data

bulletKendall's tie-adjusted tau
bulletGoodman and Kruskal's gamma
bulletPodani's measure of discordance

  Coefficients for ratio scale data

bulletCorrelation
bulletBray - Curtis
bulletRuzicka          
bulletSimilarity ratio
bulletHorn
bulletCity block metric        
bulletMean character difference      
bulletCanberra metric          
bulletNormalized Canberra metric
bulletEuclidean distance      
bulletChord distance
bulletAngular separation 
bulletPenrose size (HierClus only)
bulletPenrose shape (HierClus only)
bulletBalakrishnan - Shangvi
bulletGeneralized distance
bulletWeighted dissimilarity

  Coefficients for mixed data

These coefficients allow the simultaneous appearance of presence/absence, nominal, ordinal and ratio-scale type in the data, and missing scores are also tolerated. Ordial variables are treated as described by Podani in Taxon 1999.

bulletGower
bulletDistance for mixed data

 

 

 

 

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