thresh P-value %words %seq Nwords Nseq total_words total_seq 6.5956 5.0e-05 66.7% 60.0% 4 3 6 5 6.0152 0.0001 83.3% 80.0% 5 4 6 5 4.7383 0.0005 83.3% 80.0% 5 4 6 5 4.2681 0.001 100.0% 100.0% 6 5 6 5