Table 4.

Concordance between predictions and data

		Archaea/bacteria			Eukaryotes
	Amino acids/codons	Observed	Four-parameter	24-parameter	Observed	Four-parameter	24-parameter
Observed	Slope	-	0.89	0.93	-	0.88	0.92
	Intercept	-	0.91	0.92	-	0.90	0.91
Four-parameter	Slope	0.83	-	0.95	0.80	-	0.96
	Intercept	0.82	-	0.99	0.80	-	0.98
24-parameter	Slope	0.90	0.94	-	0.85	0.95	-
	Intercept	0.86	0.96	-	0.80	0.95	-

Each entry is the correlation coefficient between the predicted and observed values for the 64 codons (above the diagonal) or 21 amino acid sets (below the diagonal) for archaea and bacteria (left) and eukaryotes (right). See Figure 5 for an example (the graph for the first entry on the second column: note that the graph shows R², not R).