thresh P-value %words %seq Nwords Nseq total_words total_seq 8.8434 1.0e-05 26.7% 26.7% 4 4 15 15 7.8777 5.0e-05 33.3% 33.3% 5 5 15 15 7.4099 0.0001 40.0% 40.0% 6 6 15 15 6.1808 0.0005 46.7% 46.7% 7 7 15 15 5.5786 0.001 53.3% 53.3% 8 8 15 15