thresh P-value %words %seq Nwords Nseq total_words total_seq 8.6856 1.0e-05 18.8% 14.3% 6 6 32 42 7.5589 5.0e-05 37.5% 28.6% 12 12 32 42 7.0139 0.0001 53.1% 40.5% 17 17 32 42 5.5894 0.0005 68.8% 52.4% 22 22 32 42 4.8963 0.001 75.0% 57.1% 24 24 32 42