Compare beta diversity between and within groups

[microsud]

Request for function that allows comparison of beta diversity (boxplots) between and within groups.

[antagomir]

The microbiome::divergence function can already be used for this purpose, at least to some extent. We can develop it further, though. Some examples in the tutorial.

[microsud]

Yes I think the microbiome::divergence function can be wrapped for more intuitive and global comparison (compare_divergence/global_divergence) to get something as shown below. I got some request for this. IMO the appropriate place for this is microbiome pkg.

[antagomir]

Good to me. PRs are welcome, or we may implement it when time allows.