getPeaks2 {PROcess}R Documentation

Quantify peaks for individual spectra.

Description

For a vector of given peak locations, quantify peaks for individual spectra.

Usage

getPeaks2(bseoffM, pVec, eps = 0.003)

Arguments

bseoffM A matrix of intensities, with rows the m/z values and columns samples.
pVec A vector of given peak locations.
eps Relative precision of peak location.

Details

Each peak is expanded to an interval, eps * m/z to the left and right of the peak. Intensities of individual spectra are quantified by the maxima in this interval.

Value

A matrix of intensities with rows the peaks 'pVec' and column the samples. The m/z values of 'pVec' is stored as the 'rownames' of the returned matrix.


[Package PROcess version 1.12.0 Index]