thresh P-value %words %seq Nwords Nseq total_words total_seq 9.2311 1.0e-05 44.4% 42.1% 8 8 18 19 7.9918 5.0e-05 66.7% 63.2% 12 12 18 19 7.4071 0.0001 66.7% 63.2% 12 12 18 19 5.8695 0.0005 72.2% 68.4% 13 13 18 19 5.1276 0.001 72.2% 68.4% 13 13 18 19