thresh P-value %words %seq Nwords Nseq total_words total_seq 9.0687 1.0e-05 25.0% 20.0% 10 10 40 50 7.9638 5.0e-05 52.5% 42.0% 21 21 40 50 7.3185 0.0001 65.0% 52.0% 26 26 40 50 5.5762 0.0005 97.5% 78.0% 39 39 40 50 4.7416 0.001 100.0% 82.0% 40 41 40 50