Cophenetic metrics for phylogenetic trees, after Sokal and Rohlf

Correlation between metrics over phylogenetic trees with 6 leaves

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=11.00.965115470.803158910.864112580.50563126
Coph p=2 1.00.831387250.902573130.52983667
Nsp p=1  1.00.957056910.66575159
Nsp p=2   1.00.64220278
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=11.00.966308920.901153920.930532660.066216880.057751490.47377498
Coph p=2 1.00.937209080.971649410.093708360.100913630.50113041
Nsp p=1  1.00.96338040.193646160.177668810.57215378
Nsp p=2   1.00.162687280.165549930.55079112
Nunsp p=1    1.00.928420860.58512653
Nunsp p=2     1.00.62364362
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