thresh P-value %words %seq Nwords Nseq total_words total_seq 6.7983 5.0e-05 6.7% 6.7% 2 2 30 30 6.7348 0.0001 6.7% 6.7% 2 2 30 30 5.48 0.0005 36.7% 36.7% 11 11 30 30 4.9979 0.001 43.3% 43.3% 13 13 30 30