The advent of the computer has brought about dramatic improvements
in our ability to model multi-dimensional data and multi-dimensional landscapes. Previously, fitting a model to data using pen and paper would invariable come up against the already mentioned curse of dimensionality, which would often render
anything beyond two or three variables intractable.
What has not changed significantly, however, is our (in)ability, to build a mental image of a multi-dimensional model, once such a model has been constructed. This chapter touches on some methods to ease the visualisation of such multi-dimensional models.