Inverse Simpson Index (Alpha Diversity)

[fgara]

Hi everyone,
I’m wondering if there’s an option to calculate inverse simpson index in QIIME2?
If not, should I just divide 1 by the result of (–p-metric: simpson)?

In that case, how do I plot the updated results as a QIIME rarefaction plot?
I’d like to create QIIME rarefaction plot using these values, so I can compare it to another plot that is using a Shannon index as metric.

Thank you very much

[ChrisKeefe]

Hi @fgara,
qiime diversity alpha will let you calculate many different measures of diversity, including simpson and dominance. I suspect dominance is what you’re looking for, but the whole list is here in case you want to poke around some more. Under the hood, it’s using skbio's implementation of those measures, so the docs I linked to are directly relevant.

Best,
Chris Keeefe

[fgara]

Hi @ChrisKeefe,
Thank you so much!
It’s very useful to know this.