Load demo data (OMA section 3.3).
Extra: create the data straight from source files in the shared data folder (OMA section 3.4).
Extract the microbiota data elements (ch 3.2):
Show how to subset microbiota data (ex. 17.3.1)
Subset to the most prevalent taxa (17.3.3) (tip: subsetByPrevalentFeatures)
Agglomerate the microbiota data to higher taxonomic levels: