brettc / partitionfinder

PartitionFinder discovers optimal partitioning schemes for DNA sequences.
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Add support for sequential analyses over a model list #25

Closed roblanf closed 9 years ago

roblanf commented 9 years ago

One thing about raxml is that you can only use a single model of rate variation for each partition (parameters estimated independently per partition).

So one thing that would be useful in PF would be to be able to provide a list of models, e.g.

models = GTR, GTR+G, GTR+I+G;

and then rather than consider combinations of these models, just run three analyses - one with all models set to GTR, one with all set to GTR+G, and one with GTR+I+G.

We would then just pick the scheme with the lowest AICc, as usual, and output that along with the best models.

This is a low priority, as it is fairly cosmetic, but user-friendly nonetheless

cmayer commented 9 years ago

Hi Rob,

that feature would allow users to use PF also as a normal model test program. Why not. But it should not be the default.

Best Christoph

Am 18.01.2015 um 03:44 schrieb roblanf:

One thing about raxml is that you can only use a single model of rate variation for each partition (parameters estimated independently per partition).

So one thing that would be useful in PF would be to be able to provide a list of models, e.g.

models = GTR, GTR+G, GTR+I+G;

and then rather than consider combinations of these models, just run three analyses - one with all models set to GTR, one with all set to GTR+G, and one with GTR+I+G.

We would then just pick the scheme with the lowest AICc, as usual, and output that along with the best models.

This is a low priority, as it is fairly cosmetic, but user-friendly nonetheless

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roblanf commented 9 years ago

Not done.