I have more than 6000 taxa in the taxonomy.qzv, but most of them present in only one or two sample, i have 22 samples. when i ran ancom on taxonomic level7, i found only 110 taxa that are differentially abundant.
Notice:i filtered the frequency table to contain only feature that greater than 50frequency and present in 4 samples and more( --p-min-features 50 ,–p- min-samples 4)
Is it normal to obtain only 100 taxa in ancom?
Also, another strange result, i get only one feature when i run ancom without the taxa collapse command, why?
Thanks for the great team