Options of the 2D-COS Control Window

mat2dcorr: screenshot of the 2D-COS control window

Type of 2D spectrum: defines the type of the 2D-COS analysis. Valid options are:

* Pearson scaling - the synchronous 2D spectrum with Pearson, or unit variance scaling. Pearson scaling is also used in statistical total correlation spectroscopy [STOCSY] and statistical heterospectroscopy [SHY])
* Pareto scale 0.75 - the synchronous 2D spectrum with Pareto scaling. The parameter α equals 0.75
* Pareto scale 0.50 - the synchronous 2D spectrum with Pareto scaling. The parameter α equals 0.50 (Pareto scaling in the strict sense)
* Pareto scale 0.25 - the synchronous 2D spectrum with Pareto scaling. The parameter α equals 0.25
* stat synchronous - the classical synchronous 2D (covariance) spectrum 
* stat asynchronous - the classical asynchronous 2D spectrum 
* disrelation - allows to calculate the absolute of the 2D disrelation spectrum 
* fft synchronous - alternative implementation to obtain the synchronous 2D correlation spectrum by means of the fast Fourier-transformation approach
* fft asynchronous - alternative implementation to obtain the asynchronous 2D correlation spectrum by means of the fast Fourier-transformation approach

Spectral regions for 2D-COS analysis: allows to define the [x,y] spectral ranges for 2D-COS analysis

Type of reference spectrum: defines the type of reference spectrum to obtain the dynamic spectrum. Valid options are no reference (spectrum), average spectrum (default), first spectrum and last spectrum.

Plot contour map: plots a contour map instead of an interpolated surface map where the color is proportional to the 2D-COS functional values.

Fill contour: creates a filled contour map

Number of isolines: defines the number of isolines in contour / filled contour maps

Select colormap: the type of color maps used to plot surface maps, or to plot the isolines in contour maps

Scaling: permits to modify manually the color map by entering the minimal and maximal z-values into the appropriate edit boxes

Apply scaling: color map scaling values are immediately applied to the 2D correlation spectrum

[x,y] slice coordinates: settings required to plot 1D correlation slices, or to create [x,y] feature plots