Envoyé par : Autre
Répondu par : Béatrice Roure
|
2008-02-12 |
|
have couple of questions regarding the TP:
a) pg 20, we are asked to make a table to compare the results between PAUP and PHyml( length,likelihood and monophyletics). Now for the PAUP and PHYML do we need to do this for the 3 sets of data( 4genes, adn and aa) and all the models (GTR,JC,f81,k2p,hky85)??? b) also for the PHYML , I wasnt' abe to see the lenth of the tree, is this is recorded in a file? Because I checked all of them and didn't find it. Also should we use only the "gamma distribution with 4 categories"(page 15) when we compare the phyml with PAUP? c) page 20, 3rd question: for the same set of data and same model , compare the length of the tree by the method distance and parcimony: (again as I have aske in part a) ) Do we need to do this comparison for the 3 sets of data and for each of the 5 models(GTR,JC,f81,k2p,hky85) ? these are the questions for now, I'll email you more tomorrow. THank you |
|
|
Bonjour,
a) et c) Comme il est precise page 16, Il s'agit d'une synthese des resultats des 3 TPs de phylogenie. L'inference par maximum de vraisemblance etant longue, il faut tenir compte des resultats des 2 premieres seances pour justifier et limiter les inferences necessaires a celles qui ont ete faites pendant le dernier TP (PAUP: pages 6 a 10, PhyML: page 13 a 15) b) La taille de l'arbre doit etre calculee a partir des longueurs de branches Beatrice |
|
Question consultée 5764 fois. | 4524 votes, Moyenne 3/5.0
|  Retour aux questions | |
|