This function maps peptides to a specified reference level (e.g., protein, gene, or protein group)
based on Peptide-to-Spectrum Matches (PSMs). It also calculates how many reference entities
(e.g., proteins, genes, or groups) are matched by each peptide.
Usage
iwf_pep2level(psms, levelRef)
Arguments
- psms
A data.frame containing PSM data, including peptideRef (peptide identifier) and the reference level specified by levelRef.
- levelRef
The column name in psms that contains the reference level to which peptides should be mapped.
Value
A data.frame containing:
peptideRefThe peptide identifier.
levelRefThe reference level identifier.
sharedThe number of reference entities matched by each peptide.
