thresh P-value %words %seq Nwords Nseq total_words total_seq 9.3313 1.0e-05 18.0% 18.6% 237 250 1316 1347 7.9788 5.0e-05 38.0% 40.9% 500 551 1316 1347 7.29 0.0001 48.6% 52.2% 639 703 1316 1347 5.4171 0.0005 75.1% 80.0% 988 1078 1316 1347 4.462 0.001 84.0% 87.9% 1105 1184 1316 1347