The application calculates the target FDR rate for peptide groups, proteins, and protein groups as follows 1):

𝑑𝑒𝑐𝑜𝑦 𝑐𝑜𝑢𝑛𝑡𝑡𝑎𝑟𝑔𝑒𝑡 𝑐𝑜𝑢𝑛𝑡

where:

  • Decoy count is the sum of all decoy items in the report.
  • Target count is the sum of all target items in the report.