Figure 4
From: A statistical model-building perspective to identification of MS/MS spectra with PeptideProphet
Quantile-to-quantile plot comparing the quantiles of the original mixture distribution of the Human Plasma data. Quantile to quantile plot comparing the quantiles of the original mixture distribution of the Human Plasma data for Charges 2 (left) and 3 (right) compared to the quantiles of randomly bootstrapped samples. The quantile-to-quantile plot for Charge 2 shows more deviation in quantiles due to the low number of identified spectra in the score range between 2 and 8.