thresh P-value %words %seq Nwords Nseq total_words total_seq 8.9209 1.0e-05 15.8% 16.1% 662 678 4198 4213 7.7293 5.0e-05 31.3% 32.9% 1312 1387 4198 4213 7.1483 0.0001 39.8% 43.2% 1672 1819 4198 4213 5.6069 0.0005 61.9% 70.2% 2597 2956 4198 4213 4.8479 0.001 71.7% 80.6% 3010 3397 4198 4213