Scatterplots




It can be used to project high-dimensional data to 2-dimensions. In this approach, an N*N grid of parallel projections of the data are generated. Each of these is a simple xy plot for the two dimensions it represents. The horizontal dimension of a scatterplot is controlled by the column it resides in, and likewise the vertical dimension is controlled by the row. At the top of each column and at the left of each row is a label that shows what dimensions that row/column represents.

This technique can be used to find the linear features, which indicate a pairwise relationship within the data.