Figure 3
From: A statistical model-building perspective to identification of MS/MS spectra with PeptideProphet
Bootstrapped samples of π 0 , μ , and σ for Charges 2 and 3 of the Human Plasma data. The original estimates are marked by the vertical line. The length of the horizontal axes are equal for the plots of a particular parameter. The Charge 2 distributions are slightly skewed compared to Charge 3 distributions and the mean squared errors are much greater in Charge 2 distributions. The variability of the Charge 2 distributions are visibly much greater indicating unstable estimates.