I am using the DirichletMultinomial package to identify clusters in an Airways Microbiome dataset. In a PCOA analysis I can see 2 clear clusters buy when I run the DMM package I'm told the best model is with one cluster?
I've tried this with 3 different datasets now and I keep getting one cluster.
I was wondering if there may be something wrong with the abundance txt file i'm feeding into the package?
The Format of my abundance txt file is as follows:
Column 1: A list of all the Taxa
Row 1: A list of all the sample names
Any help/advice would be greatly appreciated.
Thank you all
Dr. Imran Sulaiman