fix: replace groupby with isel in posterior_alr_to_clr - #103

warning libmamba 'repo.anaconda.com', a commercial channel hosted by Anaconda.com, is used. warning libmamba Please make sure you understand Anaconda Terms of Services. warning libmamba See: https://legal.anaconda.com/policies/en/

WARNING conda.cli.main_config:_set_key(456): Key auto_activate_base is an alias of auto_activate; setting value with latter

Mamba support is still experimental and can result in differently solved environments!