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TNT - Tree analysis using New Technology.


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Overview

This wiki is an attempt to link the community of users who use TNT. In particular we seek to expand and clarify the application help, provide an archive for code written in TNT's scripting language, and highlight cutting edge usage of the software.

What is TNT?

TNT is a program for phylogenetic analysis under parsimony. TNT (Tree analysis using New Technologies) is a joint project of Goloboff, Farris and Nixon that originated in 2000 as a beta version (mostly cited as Goloboff, P., Farris, J., Nixon, K. 2003. T.N.T.: Tree Analysis Using New Technology) until the current version with free license. You can find more on its history here.

TNT incorporates fast tree-searching algorithms like Ratchet (Nixon, 1999), sectorial searches, tree-drifting, and tree-fusing (Goloboff, 1999).

For those who prefer to use optimality criteria other than parsimony TNT can still be of use. The software contains powerful tree handling tools, and can be scripted to explore a wide range of data/tree-related properties. For those studying large datasets it remains the fastest tool to generate starting toplogies for subsequent fast ML approaches.

As noted in Goloboff et al., 2008 TNT is now free software thanks to Willi Hennig Society. Anybody can download it for free. Updates to TNT are regular (often every 2 months or so) therefore it is recommended that you frequently check for new versions.

Community Portal

To increase the interaction among TNT users we have created Google group where anyone can make questions about anything related to the program. To be member of the group follow this link:

http://groups.google.com.ar/group/tnt-tree-analysis-using-new-technology

A note on usage

This wiki is strictly for help in using the TNT software. It is not a forum for promoting parsimony over ML, Bayesian or other methods, nor TNT over PAUP*. Citations and short clarifications that address these off limit topics may be permitted if they seek to clarify methodological approaches. As a rule of thumb, if it sounds philosophical, it doesn't belong here.


Ideas and opinions expressed here are those of the contributors, and not the Willi Hennig Society. This wiki is not (yet) officially endorsed by the Hennig Society.

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