Table 1.

Comparisons between Equilibrium Vectors

Comparisons	P Value	A* 1	A* 2	A: Z Score	C* 1	C* 2	C: Z Score	G* 1	G* 2	G: Z Score	U* 1	U* 2	U: Z Score
4 versus non-4	0.012	0.170	0.142	3.596	0.10	0.099	0.221	0.035	0.060	−8.426	0.695	0.699	−0.348
1 versus 2	<0.001	0.196	0.111	12.939	0.094	0.076	6.858	0.079	0.077	0.550	0.632	0.735	−12.282
1- versus 4-fold	<0.001	0.196	0.170	3.138	0.094	0.10	−1.745	0.079	0.035	14.416	0.632	0.695	−6.860
2- versus 4-fold	<0.001	0.111	0.170	−8.665	0.076	0.10	−8.079	0.077	0.035	12.882	0.735	0.695	4.716

Note.—P is determined by 10,000 simulations (see Materials and Methods). Z score orientation is such that a positive value implies comparative enrichment within the first comparator in the Comparison column. For example, in row 1 (4 versus non-4), the 4-fold degenerates sites are site class 1 and non-4-fold degenerate sites are the non-4-fold degenerate sites (i.e., all others) and are class 2. In this case, C* 1, for example, is then the equilibrium C content of sites of class 1 (4-fold degenerates) and C* 2 the equilibrium C content of sites of class 2.