thresh P-value %words %seq Nwords Nseq total_words total_seq 8.3946 1.0e-05 24.0% 24.0% 6 6 25 25 7.4768 5.0e-05 32.0% 32.0% 8 8 25 25 6.9947 0.0001 44.0% 44.0% 11 11 25 25 5.6825 0.0005 72.0% 72.0% 18 18 25 25 5.0182 0.001 84.0% 84.0% 21 21 25 25