Figure 1
From: Improved results in proteomics by use of local and peptide-class specific false discovery rates
Illustrating the principal of calculating global- and local-FDR. The global-FDR is calculated on a list of results that rank above a given score, whilst the local-FDR is calculated on a list of results within a window surrounding a given score. In both cases the given score can be changed to obtain an FDR profile for the entire results list, or to find a particular FDR cut-off. True positives (green), false positives (red).