thresh P-value %words %seq Nwords Nseq total_words total_seq 8.8391 1.0e-05 32.3% 27.0% 10 10 31 37 7.67 5.0e-05 48.4% 40.5% 15 15 31 37 7.1036 0.0001 54.8% 48.6% 17 18 31 37 5.6051 0.0005 71.0% 62.2% 22 23 31 37 4.8705 0.001 90.3% 75.7% 28 28 31 37