thresh P-value %words %seq Nwords Nseq total_words total_seq 7.3459 5.0e-05 14.5% 16.9% 10 12 69 71 6.9224 0.0001 29.0% 32.4% 20 23 69 71 5.0094 0.0005 60.9% 59.2% 42 42 69 71 4.5343 0.001 73.9% 71.8% 51 51 69 71