Remove decoy identification
This function trims down an mzID or mzIDCollection object by removing all information that is only related to the decoy database search. If some information relates to both the regular and decoy database (e.g. a peptide sequence that can be found in both databases) it is kept.
An mzID or mzIDCollection to remove decoy information from
An mzID or mzIDCollection object depending on the input