Smoothed density estimates of raw PM intensities for 10 randomly selected arrays from the Affymetrix Latin Square spike-in experiments. HG-U95Av2 (a) and HG-U133A (b). Each colored line represents a different experiment. A convolution of a normal distribution and an exponential distribution seem reasonable for these data.
Chen et al. BMC Genomics 2009 10(Suppl 1):S19 doi:10.1186/1471-2164-10-S1-S19