Baseline Correction of Spectra

Collection of baseline correction algorithms, along with a framework and a Tcl/Tk enabled GUI for optimising baseline algorithm parameters. Typical use of the package is for removing background effects from spectra originating from various types of spectroscopy and spectrometry, possibly optimizing this with regard to regression or classification results. Correction methods include polynomial fitting, weighted local smoothers and many more.

Baseline Correction of Spectra - baseline

Installation

# Install release version from CRAN  
install.packages("baseline")  
# Install development version from GitHub  
devtools::install_github("khliland/baseline")

Contents

• S4 interface baseline() with a range of baseline correction methods
  • 4S Peak Filling
  • Asymmetric Least Squares - ALS
  • IRLS
  • LowPass filtering
  • Median Window
  • Modified polynomial fitting
  • Peak Detection
  • Rolling Ball
  • RF baseline
  • Shirley
  • TAP
  • Common plotting function
• Customized baseline correction
  • Interval stretch/compress for more adaptive baseline
• Baseline optimisation for prediction and classification
  • Design of Experiments
  • Running of DoE
  • Analysis of results
• Tcl/Tk based Graphical User Interface for baseline correction