thresh P-value %words %seq Nwords Nseq total_words total_seq 9.0596 1.0e-05 53.3% 42.1% 8 8 15 19 7.8117 5.0e-05 66.7% 52.6% 10 10 15 19 7.1256 0.0001 86.7% 68.4% 13 13 15 19 5.6495 0.0005 100.0% 78.9% 15 15 15 19 4.7391 0.001 100.0% 78.9% 15 15 15 19