thresh P-value %words %seq Nwords Nseq total_words total_seq 7.2405 5.0e-05 11.1% 10.5% 4 4 36 38 7.0371 0.0001 22.2% 21.1% 8 8 36 38 5.8637 0.0005 55.6% 52.6% 20 20 36 38 5.0666 0.001 75.0% 73.7% 27 28 36 38