corr2D : Implementation of Two-Dimensional Correlation Analysis in R

Titelangaben

Geitner, Robert ; Fritzsch, Robby ; Popp, Jürgen ; Bocklitz, Thomas:
corr2D : Implementation of Two-Dimensional Correlation Analysis in R.
In: Journal of Statistical Software. Bd. 90 (2019) Heft 3 . - S. 1-33.
ISSN 1548-7660
DOI: https://doi.org/10.18637/jss.v090.i03

Volltext

Link zum Volltext (externe URL):

Weitere URLs

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.