Frequently Asked Questions (FAQ): Difference between revisions

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(Created page with "__FORCETOC__ == 2D auto-correlation and 2D hetero-correlation analysis == The mat2dcorr toolbox was initially designed for hetero 2D correlation analysis. Therefore, you will have to load your spectral data files twice as x- and as y-data in order to perform classical 2D (auto) correlation analysis. == Links to other non-commercial 2D-COS software solutions == * [https://sites.google.com/view/shigemorita/home/2dshige 2dshige], free software for two-dimensional corre...")
 
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== 2D auto-correlation and 2D hetero-correlation analysis ==
== I have loaded spectral data, but the buttons are still grayed out? ==


The mat2dcorr toolbox was initially designed for hetero 2D correlation analysis. Therefore, you will have to load your spectral data files twice as x- and as y-data in order to perform classical 2D (auto) correlation analysis.
This is not a bug! It is important to understand that the mat2dcos toolbox was originally developed for heterospectral 2D correlation analysis (2D-COS). This means that spectral series from two different modalities are analyzed. For example, if IR and Raman data are to be analyzed by heterospectral 2D-COS, two different spectral series must be loaded into the toolbox.
For the probably more common case of autocorrelation 2D-COS, this means that the data set to be analyzed has to be loaded twice, once as x- and a second time as y-data set. Only then will the buttons be available for analysis.


== Links to other non-commercial 2D-COS software solutions  ==
== Links to other non-commercial 2D-COS software solutions  ==
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* [https://de.mathworks.com/matlabcentral/fileexchange/32384-midas-2010 MIDAS 2010], Matlab-based software tools developed in the Canadian Light Source for 2D spectroscopic analysis and data exploration of time resolved infrared spectra
* [https://de.mathworks.com/matlabcentral/fileexchange/32384-midas-2010 MIDAS 2010], Matlab-based software tools developed in the Canadian Light Source for 2D spectroscopic analysis and data exploration of time resolved infrared spectra
* [https://arxiv.org/abs/1808.00685 corr2D (R)], - Implementation of two-dimensional correlation analysis in R, developed by Robert Geitner.
* [https://arxiv.org/abs/1808.00685 corr2D (R)], - Implementation of two-dimensional correlation analysis in R, developed by Robert Geitner.
 
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Latest revision as of 07:25, 22 July 2023


I have loaded spectral data, but the buttons are still grayed out?

This is not a bug! It is important to understand that the mat2dcos toolbox was originally developed for heterospectral 2D correlation analysis (2D-COS). This means that spectral series from two different modalities are analyzed. For example, if IR and Raman data are to be analyzed by heterospectral 2D-COS, two different spectral series must be loaded into the toolbox. For the probably more common case of autocorrelation 2D-COS, this means that the data set to be analyzed has to be loaded twice, once as x- and a second time as y-data set. Only then will the buttons be available for analysis.

Links to other non-commercial 2D-COS software solutions

  • 2dshige, free software for two-dimensional correlation analysis developed by Prof. Shigeaki Morita (Osaka Electro-Communication University).
  • MIDAS 2010, Matlab-based software tools developed in the Canadian Light Source for 2D spectroscopic analysis and data exploration of time resolved infrared spectra
  • corr2D (R), - Implementation of two-dimensional correlation analysis in R, developed by Robert Geitner.


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