Figure 7From: Classification of microarray data using gene networksDecomposition of a gene expression profile. Following the idea of Fourier decomposition (above), we can decompose a gene expression profile, here the first non-irradiated microarray sample from our data set, into two parts: the smooth component and the high-frequency component. We can then apply some filtering to attenuate or cancel the effect of the high-frequency component.Back to article page