I am working on training feature classifiers for my data set using qiime2-2018.11 and working through the associated QIIME2 documentation.
I noticed that when extracting the reference reads, there is a command line to add in the minimum and maximum length for the amplicon.
Is this step necessary? Or is leaving these values as default fine?
In previous versions of the QIIME2 documentation for training feature classifiers, these commands are omitted. So I was curious if these commands are necessary for improved downstream analysis?