baselineCorrect: generic function to perfom baseline correction

In spectralAnalysis: Pre-Process, Visualize and Analyse Spectral Data

generic function to perfom baseline correction

Description

generic function to perfom baseline correction

Usage

baselineCorrect(object, ...)

## S4 method for signature 'SpectraInTime'
baselineCorrect(object, method = "modpolyfit", degree = 4, ...)

## S4 method for signature 'SpectraInTimeComp'
baselineCorrect(object, ...)

Arguments

object	a S4 class object
...	other parameters passed to baseline
method	method of baseline correction, default value is to 'modpolyfit', see baseline.modpolyfit
degree	numeric value, degree of the polynomial used only if method is code'modpolyfit'

Value

SpectraInTime-class

Note

baseline correction in the wavelength domain by linking to the baseline

Examples

 spectralEx           <-  getSpectraInTimeExample()
 timeRange            <-  range( getTimePoints( spectralEx ) )
 timesToSelect        <-  e(  seq( timeRange[1] , timeRange[2] , length.out = 5  )   )
 baselineDefault      <-  baselineCorrect( spectralEx )
 baselineHighPolynomial  <-  baselineCorrect( spectralEx, 
   method = 'modpolyfit', degree = 4 )

 # filtering with fast fourier transform, not so good on example 
 baselineLowpass         <-  baselineCorrect( spectralEx , method = "lowpass" )

 # visual inspection
 
 plot( spectralEx )   
 plot( baselineDefault[ timesToSelect , ] , type = "time"  )
 plot( baselineHighPolynomial[ timesToSelect , ] , type = "time"  )
 plot( baselineLowpass[ timesToSelect , ] , type = "time"  ) 

spectralAnalysis documentation built on Jan. 11, 2023, 5:15 p.m.