thresh P-value %words %seq Nwords Nseq total_words total_seq 8.0776 5.0e-05 25.8% 21.3% 16 16 62 75 7.1494 0.0001 33.9% 28.0% 21 21 62 75 6.0224 0.0005 48.4% 40.0% 30 30 62 75 5.2592 0.001 61.3% 50.7% 38 38 62 75