thresh P-value %words %seq Nwords Nseq total_words total_seq 8.6273 1.0e-05 41.7% 27.8% 5 5 12 18 7.4962 5.0e-05 58.3% 38.9% 7 7 12 18 6.9884 0.0001 58.3% 38.9% 7 7 12 18 5.5758 0.0005 91.7% 61.1% 11 11 12 18 4.9034 0.001 91.7% 61.1% 11 11 12 18