removePeaks {tofsims} | R Documentation

## generic method removePeaks

### Description

generic method removePeaks

removePeaks for PeakList Class allows removing peaks below a certain treshhold of ioncounts. the threshhold is not calculated as area, but just from the peak height (ion count at peak center)

removePeaks for PeakList Class allows removing peaks manually

removePeaks for PeakList Class allows removing peaks manually

### Usage

    removePeaks(object, mzs, operator, limit, nLocator, ...)

    ## S4 method for signature 'PeakList,missing,missing,numeric,missing'
    removePeaks(object, mzs,
      operator, limit, nLocator, ...)

    ## S4 method for signature 'PeakList,missing,missing,missing,numeric'
    removePeaks(object, mzs,
      operator, limit, nLocator, ...)

    ## S4 method for signature 'PeakList,numeric,missing,missing,missing'
    removePeaks(object, mzs,
      operator, limit, nLocator, ...)

    ## S4 method for signature 'PeakList,missing,character,numeric,missing'
    removePeaks(object, mzs,
      operator, limit, nLocator, ...)

### Arguments

`object` | object of class PeakList
`mzs` | M/z's of peaks to be removed
`operator` | Accept ">", "<", "==", "<=", ">=", "!="
`limit` | numeric limit for peaks to be removed
`nLocator` | numeric how many peaks to remove with visual selection
`...` | additional args

### Value

object of class PeakList with removed/updated peaks

### Examples

    library(tofsimsData)
    data(tofsimsData)
    testPeakList<-PeakList(analysisName = analysisName(testSpectra),
    instrument = instrument(testSpectra),
    nz = nz(testSpectra),
    calibration = calibration(testSpectra),
    calibPoints = calibPoints(testSpectra),
    mz = mz(testSpectra),
    peakIDs = NULL,
    peakMzs = NULL)
    par(mfcol=c(1,2))
    testPeakList<-addPeaks(testPeakList, mzs = 26:31, width=0.4)
    plot(testPeakList, mzRange = c(25,32), type = 'l')
    testPeakList<-removePeaks(testPeakList, mzs = 27)
    plot(testPeakList, mzRange = c(25,32), type = 'l')

[Package tofsims version 1.8.0 Index]