thresh P-value %words %seq Nwords Nseq total_words total_seq 9.2764 1.0e-05 22.7% 23.8% 5 5 22 21 7.7246 5.0e-05 77.3% 81.0% 17 17 22 21 6.9125 0.0001 81.8% 85.7% 18 18 22 21 5.7317 0.0005 86.4% 90.5% 19 19 22 21 4.9055 0.001 90.9% 95.2% 20 20 22 21