Table 3.

Titration trend.

	Correlation Coefficients		Within 1.41 fold change		Titration Trend
Platform	Sample C	Sample D	Sample C	Sample D	FDR = 0.05	FDR = 0.01
AFX	0.909	0.911	0.997	0.993	0.989	0.993
ABI	0.916	0.928	0.880	0.897	0.981	0.986
AG1	0.930	0.939	0.947	0.928	0.961	0.970
ILM	0.930	0.936	0.963	0.972	0.968	0.975
GEH	0.923	0.934	0.919	0.919	0.995	0.997

Titration trend: The correlation coefficients between the observed responses for Samples C and D and the expected responses as predicted by the corresponding mixture of the observed values of Samples A and B. The proportions of the genes that the difference between the observed and the expected responses are within the 2^0.5 = 1.41 fold change. The proportions of the genes follow the titration trend model from the 2-step goodness-of-fit procedure.