thresh P-value %words %seq Nwords Nseq total_words total_seq 9.4225 1.0e-05 16.0% 16.0% 4 4 25 25 8.382 5.0e-05 40.0% 40.0% 10 10 25 25 7.8499 0.0001 56.0% 56.0% 14 14 25 25 6.4081 0.0005 76.0% 76.0% 19 19 25 25 5.6996 0.001 80.0% 80.0% 20 20 25 25