thresh P-value %words %seq Nwords Nseq total_words total_seq 9.445 1.0e-05 19.5% 18.7% 367 374 1885 2005 8.1552 5.0e-05 41.2% 39.9% 777 799 1885 2005 7.4534 0.0001 53.2% 51.4% 1002 1031 1885 2005 5.3789 0.0005 86.7% 81.2% 1634 1629 1885 2005 4.2621 0.001 94.2% 89.5% 1775 1795 1885 2005