thresh P-value %words %seq Nwords Nseq total_words total_seq 6.9692 5.0e-05 9.4% 9.6% 5 5 53 52 6.8668 0.0001 13.2% 13.5% 7 7 53 52 5.5806 0.0005 47.2% 48.1% 25 25 53 52 4.8056 0.001 62.3% 63.5% 33 33 53 52