
154 DIMENSIONS 1, 2, 3, . . . , ∞
Figure 4.2 Colour perception data. Displays prepared with Data Desk [50]. For
an animated display and background information, see <http://www.statlab.uni-
heidelberg.de/data/color/>. See Colour Figure 7.
by red/green colours, and a rod-like structure orthogonal to this, essentially characterised by
blue/yellow colours. So the complete data structure has seven dimensions, with one dimension
(the target colour) used for linking and represented by colour.
We only used basic data analysis approaches to reveal this structure. Work on colour perception
has proceeded. The conception nowadays is that there are essentially t ...