Post #2713951
2023-09-25 16:12 UTC
@robjohnnoble@ecoevo.social Hi Rob, just saw this! If I understand correctly, your proposal is essentially to turn non-ultrametric trees into ultrametric ones by extending "short" branches and assigning zero density to the extensions. Then standard diversity indices can be applied.
If my understanding is correct, it sounds like a very reasonable idea!
Replies (1)
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@robjohnnoble@ecoevo.social 2023-09-25 17:39
@plektix@mathstodon.xyz For the entropy/diversity indices, yes, that's a nice way to put it (but the evenness denominators depend only on non-zero-sized branches). I hope we convey that this is just a tweak of prior work by you and others. Our more original contribution is in defining evenness indices (including tree balance indices) that account for branch lengths and node sizes and are consistent with the entropy/diversity indices.