thresh P-value %words %seq Nwords Nseq total_words total_seq 9.0508 1.0e-05 22.2% 18.2% 4 4 18 22 8.0966 5.0e-05 38.9% 31.8% 7 7 18 22 7.5983 0.0001 44.4% 36.4% 8 8 18 22 6.2792 0.0005 72.2% 59.1% 13 13 18 22 5.6121 0.001 83.3% 68.2% 15 15 18 22