thresh P-value %words %seq Nwords Nseq total_words total_seq 8.2381 1.0e-05 3.7% 3.7% 4 4 108 108 7.4865 5.0e-05 16.7% 16.7% 18 18 108 108 7.0183 0.0001 24.1% 24.1% 26 26 108 108 5.6972 0.0005 50.9% 52.8% 55 57 108 108 5.0457 0.001 61.1% 63.0% 66 68 108 108