thresh P-value %words %seq Nwords Nseq total_words total_seq 8.7918 1.0e-05 11.1% 8.7% 2 2 18 23 7.6472 5.0e-05 50.0% 39.1% 9 9 18 23 7.2492 0.0001 61.1% 47.8% 11 11 18 23 5.6763 0.0005 94.4% 73.9% 17 17 18 23 4.9792 0.001 100.0% 78.3% 18 18 18 23