Figure 5From: An evaluation of two-channel ChIP-on-chip and DNA methylation microarray normalization strategiesDensity distributions of the control probes and gene promoter probes of the normalized combined log-ratio data of dataset #2 (ChIP-on-chip). Results are shows for (from left to right, top to bottom) VSN, LOWESS, quantile (Q), T-quantile (TQ), Tukey's biweight scaling (TBW), Peng's method.Back to article page