Histograms of peak magnitudes show a similar distribution after an initial uneven trend. Distributions of peak magnitudes [Y-axis shows the frequency of a particular transcript associated with the peak occurring; x-axis is a measure of the transcript counts in log scale] after mapping shows the same trend after an initial uneven distribution. Green and red trend lines are least square fits of gamma distribution function reflecting that both samples showed great similarity after the initial uneven distribution possibly suggesting that the initial phase to be noise.
Koh et al. BMC Genomics 2010 11(Suppl 1):S6 doi:10.1186/1471-2164-11-S1-S6