Cophenetic metrics for phylogenetic trees, after Sokal and Rohlf

Correlation between metrics over phylogenetic trees with 70 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=11.00.9854173885360.7391835122820.761183577660.13699142899
Coph p=2 1.00.7886297607040.8118119011180.136486331967
Nsp p=1  1.00.9893504202640.202934397473
Nsp p=2   1.00.185446580154
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=11.00.9861417138080.7424371025410.7663246874940.4334966362540.4344503300250.0312820974475
Coph p=2 1.00.7933725264830.8191112674460.5076545863020.5093189653870.0321568711925
Nsp p=1  1.00.9905450134860.8099593747460.8090340461170.0480324771373
Nsp p=2   1.00.7836961525130.7853282646340.0437818679928
Nunsp p=1    1.00.9980333041320.0430765913515
Nunsp p=2     1.00.0401600497608
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