Cophenetic metrics for phylogenetic trees, after Sokal and Rohlf

Correlation between metrics over phylogenetic trees with 60 leaves (Simulation)

Non-necessary binary phylogenetic trees

Spearman's correlation between cophenetic, nodal and RF metrics.

 Cophenetic p=1Cophenetic p=2Nodalsp p=1Nodalsp p=2RF
Coph p=11.00.9868866722550.7329918551390.7621105701620.107535731844
Coph p=2 1.00.7835319733950.8136921571030.119250141004
Nsp p=1  1.00.9893525527850.239181245199
Nsp p=2   1.00.218849067697
RF    1.0


2D histograms. A darker squeare means that there are more trees with that relationship.

 Cophenetic p=2Nodalsp p=1Nodalsp p=2RF
Coph p=1
Coph p=2 
Nsp p=1  
Nsp p=2   

Binary phylogenetic trees

Spearman's correlation between cophenetic, nodal and RF metrics.

 Cophenetic p=1Cophenetic p=2Nodalsp p=1Nodalsp p=2Nodalunsp p=1Nodalunsp p=2RF
Coph p=11.00.9873637042330.753968838370.7791915475680.4017234069390.4049469072390.0292204936767
Coph p=2 1.00.7954010401620.8223222089920.467857537350.4710868920090.0284685349973
Nsp p=1  1.00.9889880545040.773586142210.7750997706580.0337844360343
Nsp p=2   1.00.7491787793810.7528959604040.0293644965612
Nunsp p=1    1.00.9976260244470.0464444472901
Nunsp p=2     1.00.0431704425722
RF      1.0


2D histograms. A darker squeare means that there are more trees with that relationship.

 Cophenetic p=2Nodalsp p=1Nodalsp p=2Nodalunsp p=1Nodalunsp p=2RF
Coph p=1
Coph p=2 
Nsp p=1  
Nsp p=2   
Nunsp p=1    
Nunsp p=2