Hey Maemi Jane,
Although I don't have access to the EEGLAB toolbox, I can offer some ideas on how waves might be plotted using a color gradient.
You can alter the 'ColorOrder' axes-property to plot multiple waves in accordance with a color scheme. For instance, check out the following example:
You can apply a color gradient within the same wave using the "surface" or "patch" functions. Have a look at the following MATLAB Answer case:
You can plot your desired dataset using either function as mentioned. You can use colormaps like "Parula". Refer to the following code snippet:
x = linspace(0, 2*pi, 100);
y = cos(x);
patch([x nan],[y nan],[y nan],[x nan], 'edgecolor', 'interp');
colorbar;
colormap(parula);
Additionally, you can make changes to an existing line plot and add gradient to it. Refer to the following code snippet:
n=100;
x = linspace(0, 2*pi, n);
y = cos(x);
plot_handle = plot(x,y,'r');
cd = [uint8(parula(n)*255) uint8(ones(n,1))].';
drawnow;
set(plot_handle.Edge, 'ColorBinding','interpolated', 'ColorData',cd);
I hope this helps.
