I've never seen anything like that, but the only thing I can come up with is to draw a series of 2D frequency contour maps each for a given hue and stack them in some way.

or scroll through them like rolodex cards, if you want to get fancy ;)

In reply to Re: [OT] Displaying 4D data in a 2D image. by RichardK
in thread [OT] Displaying 4D data in a 2D image. by BrowserUk

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