specDist.peakCount-methods

specDist.peakCount

specDist.peakCount,matrix,matrix-method

a Matrix containing at least m/z-values,
	row must be called "mz"

peakTable1

peakTable2

maximum absolute deviation for two matching peaks

mzabs

relative deviations in ppm for two matching peaks

mzppm

use symmetric pairwise m/z-matches only, or each match

symmetric

This method calculates the distance of two sets of peaks by just returning the number of matching peaks (m/z-values).

methods

Framework for processing and visualization of
chromatographically separated and single-spectra mass spectral data. Imports from
AIA/ANDI NetCDF, mzXML, mzData and mzML files. Preprocesses data for
high-throughput, untargeted analyte profiling.

Steffen Neumann

xcms

LC/MS and GC/MS Data Analysis

specDist.peakCount-methods function

<dl>
  <dt>peakTable1 = "matrix", peakTable2 = "matrix"</dt><dd>
  <code>
    specDist.peakCount(peakTable1, peakTable2, mzppm=10,symmetric=FALSE )
    </code></dd> </dl>

specDist.peakCount-methods: a Distance function based on matching peaks

Description

Usage

Arguments

Methods