标题： corr2D - R语言中二维相关分析的实现 显示英文标题

标题： corr2D - Implementation of Two-Dimensional Correlation Analysis in R

摘要： 在 corr2D 包中实现了二维相关分析的 R 实现。本文描述了该包中如何进行二维相关分析以及数学方程是如何被转化为 R 代码的。 本文提供了一个简单的带有可执行代码的教程，面向初学者，深入介绍了相关分析前的计算过程，详细讨论了基于快速傅里叶变换的相关分析并行化以及计算速度测试。 corr2D 包提供了使用纯 R 语言对光谱数据进行预处理、关联和后处理的可能性。 因此，corr2D 是光谱学家工具箱的一个受欢迎的补充，并使二维相关分析更加易用且透明。 显示英文摘要

摘要： 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 at 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.