thresh P-value %words %seq Nwords Nseq total_words total_seq 9.2597 1.0e-05 41.7% 27.8% 5 5 12 18 8.1267 5.0e-05 58.3% 38.9% 7 7 12 18 7.5458 0.0001 66.7% 44.4% 8 8 12 18 6.1004 0.0005 91.7% 61.1% 11 11 12 18 5.3909 0.001 91.7% 61.1% 11 11 12 18