Figure 1From: A distribution-free convolution model for background correction of oligonucleotide microarray dataSmoothed 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.Back to article page