Perform MS/MS X rank annotation for mgf file

Perform MS/MS X rank annotation for mgf file

xrankanno(file, db = NULL, ppm = 10, prems = 1.1, intc = 0.1, quantile = 0.75)

Arguments

file

mgf file generated from MS/MS data

db

database could be list object from `getms2pmd`

ppm

mass accuracy, default 10

prems

precursor mass range, default 1.1 to include M+H or M-H

intc

intensity cutoff for peaks. Default 0.1

quantile

X rank quantiles cutoff for annotation. Default 0.75.

Value

list with MSMS annotation results