Sorry if this is a silly question, but I was wondering what formulas are being used to calculate Chao1 and Chao2? Thank you!
Hello Jarred,
Many of the diversity indexes are listed, described, and cited in this thread:
Chao1, Chao2, and ACE are sort of the same thing.
Formula here:
P.S. Does that help answer your question?
P.P.S. Welcome to the forums! 
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