thresh P-value %words %seq Nwords Nseq total_words total_seq 8.6494 1.0e-05 4.2% 3.8% 2 2 48 53 7.6914 5.0e-05 18.8% 17.0% 9 9 48 53 7.198 0.0001 27.1% 24.5% 13 13 48 53 5.9235 0.0005 43.8% 39.6% 21 21 48 53 5.284 0.001 58.3% 52.8% 28 28 48 53