Re: TNT: now free phylogenetic software

["Javier N. Gelfo" <jgelfo@fcnym.unlp.edu.ar>]

No David, is not the same thing. In this method the homoplasic  
characters are less important than apomorphic ones. Here the cost of  
character state  transformations is based on their congruence, and is  
not a posteriori weighting, because transformation costs are  
dynamically determined during reconstructions. So, another important  
thing is that this is not iterative, thats means that the problem of  
different final results due to different starting points, is avoided.  
PAUP did not implement this kind of search yet.

About this method is it possible to start reading: Goloboff, 1997.  
Self-Weighted Optimization: Tree Searches and Character State  
Reconstructions under Implied Transformation Costs. Cladistics 13 (3),  
225?245.

Best, Javier.
*******************
Dr. Javier N. Gelfo
Depto. Científico Paleontología Vertebrados
Museo de La Plata
Paseo del Bosque s/n B1900FWA La Plata
Buenos Aires- Argentina.
Tel. 54 221 425-9161/6744 int. 129
Fax. 54 221 425-7527
Quoting David Marjanovic <david.marjanovic@gmx.at>:

> > And there are another interesting features to try which are not   
> > available in PAUP for example "implied weighting".
>
> Is this the same as reweighting = a-posteriori weighting, which is
> implemented in PAUP*?