thresh P-value %words %seq Nwords Nseq total_words total_seq 9.6409 1.0e-05 21.4% 21.7% 403 435 1885 2005 8.3213 5.0e-05 42.7% 43.6% 804 874 1885 2005 7.6118 0.0001 55.0% 55.8% 1037 1119 1885 2005 5.5454 0.0005 85.5% 83.1% 1612 1666 1885 2005 4.4324 0.001 92.7% 90.5% 1748 1815 1885 2005