as I understand, we put the cutoffs after trunc command. which numbers should be after the trim please?qiime dada2 denoise-paired
--i-demultiplexed-seqs paired-end-demux.qza
--p-trim-left 6
--p-trim-left-r7
--p-trunc-len-f 225
--p-trunc-len-r 218
--o-table table.qza
--o-representative-sequences rep-seqs.qza
--o-denoising-stats denoising_stats.qza
edit: which video tutorial topics should I watch to understand quality score and the plots?