Simpson's index in qiime2

Hi,

Just a simple question. May I know which Simpson’s indices is used in qiime2? Is it the D, which means 0 represents infinite diversity and 1 is no diversity? Or is it the 1-D, which means 0 is no diversity and 1 is the infinite diversity? Thank you!

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Hi @Yuhong,
Looks like it is 1-D. See here:
http://scikit-bio.org/docs/0.1.3/generated/skbio.math.diversity.alpha.simpson.html#skbio.math.diversity.alpha.simpson

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Great! Thank you Nicholas.