corr2D: Implementation of Two-Dimensional Correlation Analysis in R

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Date
2019
Volume
90
Issue
3
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Series Titel
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Publisher
Los Angeles : UCLA
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Abstract

In the package corr2D two-dimensional correlation analysis is implemented in R. This paper describes how two-dimensional correlation analysis is done in the package and how the mathematical equations are translated into R code. The paper features a simple tutorial with executable code for beginners, insight into the calculations done before the correlation analysis, a detailed look at the parallelization of the fast Fourier transformation based correlation analysis and a speed test of the calculation. The package corr2D offers the possibility to preprocess, correlate and postprocess spectroscopic data using exclusively the R language. Thus, corr2D is a welcome addition to the toolbox of spectroscopists and makes two-dimensional correlation analysis more accessible and transparent.

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Keywords
correlation analysis, 2D correlation, spectroscopy, R, R package, corr2D
Citation
Geitner, R., Fritzsch, R., Bocklitz, T. W., & Popp, J. (2019). corr2D: Implementation of Two-Dimensional Correlation Analysis in R. 90(3). https://doi.org//10.18637/jss.v090.i03
License
CC BY 3.0 Unported