# SCH

## Seminar

### Data visualisation via pairwise displays

Seminar Room 2, Newton Institute Gatehouse

#### Abstract

We take a graph theoretic approach to the component ordering problem in the layout of statistical graphics. We use Eulerian tours and Hamiltonian decompositions of complete graphs to ameliorate order effects. Similarly, visual effects of selected salient features in the data are amplified with traversals of edge weighted graphs. Examples of these techniques include improved versions of multiple comparison displays, interaction plots, star glyph displays and parallel coordinate plots. Improved versions of interaction plots and star glyph displays are described based on graph traversals. We present algorithms based on classical graph theory methods. These along with the new graphical displays are available as an R package.

This is joint work with R.W. Oldford (Waterloo).