Dulce_MS2SpectraExtract: MS/MS Spectra Extraction

In margotbligh/Dulce: Annalyse and Annotate Glycans Mass Spectrometry Data

MS/MS Spectra Extraction

Description

This function looks into an MSnBase object and extracts all MS/MS spectra related to MS1 features defined in the "annotations" object. It uses the featureSpectra() function.

Usage

Dulce_MS2SpectraExtract(data, features, annotations)

Arguments

data	MSnBase original data object. It must have msLevel=2 spectra.
features	XCMSnExp object with msLevel=1 and featured defined.
annotations	features annotated data.frame with mz values column.

Value

This function returns a MSpectra object with all msLevel=2 spectra associated with the features annotated data.frame.

margotbligh/Dulce documentation built on May 15, 2022, 10:51 a.m.