thresh P-value %words %seq Nwords Nseq total_words total_seq 9.1377 1.0e-05 26.1% 21.4% 6 6 23 28 7.7299 5.0e-05 52.2% 42.9% 12 12 23 28 7.0609 0.0001 69.6% 57.1% 16 16 23 28 5.3646 0.0005 95.7% 82.1% 22 23 23 28 4.5519 0.001 100.0% 85.7% 23 24 23 28