Generalization of the normal-exponential model: exploration of a more accurate parametrisation for the signal distribution on Illumina BeadArrays

Table 5 Excess risk ratio of background corrected log-transformed intensities

μ,σ,k,θ	R(1)	R(2)	R(3)	R(4)
set 1	1.00	1.32	1.18	1.17
set 2	1.00	1.28	1.16	1.16
set 3	1.00	1.00	2.98	1.00
set 4	1.00	1.00	2.45	1.00
set 5	1.00	1.00	1.81	1.00
set 6	1.00	1.00	1.39	1.00

Mean Absolute Deviation (MAD) of the background corrected intensities for methods ${\hat{S}}^{(j)}$ , j=1,…,5 divided by the MAD for the theoretical normal-gamma BgC with the true parameters (method ${\hat{S}}^{(0)}$ ), from the simulation data set (S₁). Column 1: normal-gamma, column 2: normexp-MLE, column 3: normexp-RMA, column 4: normexp-NP.

ISSN: 1471-2105