thresh P-value %words %seq Nwords Nseq total_words total_seq 8.3295 1.0e-05 26.3% 26.3% 5 5 19 19 7.2128 5.0e-05 42.1% 42.1% 8 8 19 19 6.6736 0.0001 52.6% 52.6% 10 10 19 19 5.2577 0.0005 68.4% 68.4% 13 13 19 19 4.5695 0.001 78.9% 78.9% 15 15 19 19