findPrecursor: Find candidate precursor from fullMS function

In LipidMS: Lipid Annotation for LC-MS/MS DDA or DIA Data

Find candidate precursor from fullMS function

Description

This function is employed by all identification function in this package to find possible precursors in the fullMS function.

Usage

findPrecursor(MS1, db, ppm, massdif, rt, n = 1, charge = 1)

Arguments

MS1	data frame containing m/z, RT and intensity of ions from the first function
db	database to be searched for matches
massdif	mass difference between neutral mass and the adduct expected
rt	rt window
n	numeric value indicating whether to look for monomers (1), dimers (2), etc.
charge	numeric value indicating the expected charge of the ions

Value

Subset of the original data frame without adducts

Author(s)

M Isabel Alcoriza-Balaguer <[e-mail]>

LipidMS documentation built on May 29, 2024, 11:24 a.m.