Dear Geraldo,
the routine you are using seems unnecessarily heavy. One of the main reasons TNT is widely regarded as the most efficient parsimony program (e.g., Goloboff et al., 2022) is due to its highly optimized algorithms. This efficiency means you don’t need overly complex routines to find the Most Parsimonious Trees (MPTs).
I respectfully recommend using a more efficient approach. For instance, here’s the routine we used to analyze 157 phylogenomic datasets (Torres et al., 2021):xmult= rep 3 hits 3 fuse 10 ratchet 10 drift 10 nocss noxss norss; bbreak;
Alternatively, you can use the scripts provided in Torres et al., (2022). While primarily intended for phylogenomic datasets, they are also suitable for morphological matrices.
Of course, your matrix could have special subtleties that make you feel you need deeper searches; however, I think you will be fine using much lighter searches.
If you’re still uncertain about finding all the MPTs, you can gradually increase the parameter values. You’ll likely find that the results converge to the same trees quite quickly.
All the best,
-- Ambrosio T.
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--Ambrosio Torres G.- Researcher / Investigador [Ctr. for Integr. Biodivers. Discov. - Museum für Naturkunde, Invalidenstraße 43, 10115 Berlin, Germany]
- Ph.D. Biol. Sci. / Dr. en Cs. Biol. [UNT, S. M. de Tucumán, Argentina]- B. Sc. / Biólogo [UIS, Bucaramanga, Colombia]
- Institutional email: Ambrosio.T...@mfn.berlin
- Google Scholar: https://scholar.google.com/citations?user=UshnduEAAAAJ&hl=es
- ResearchGate: https://www.researchgate.net/profile/Ambrosio_Torres_G
- GitHub: https://github.com/atorresgalvis
- Researcher / Investigador [Ctr. for Integr. Biodivers. Discov. - Museum für Naturkunde, Invalidenstraße 43, 10115 Berlin, Germany]
xmult= rep 3 hits 3 fuse 10 ratchet 10 drift 10 nocss noxss norss; bbreak;
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