Phylum level - warning about datest

[Russel88]

Hi Mia,

The warning does not tell you whether or not there are any differences between the phyla. The problem is that testDA needs enough features (here phyla) to actually compare the different DA methods. With very few features the DA methods cannot be reliably compared.

You could run allDA and compare the results of the different methods:
test_all <- allDA(p1, predictor = "Species")
test_all$adj
test_all$est

or simply choose a DA method that usually works well and go with that, such as DA.wil, DA.ds2, or DA.msf

Regards,
Jakob