Visualizing and Modeling Categorical Time Series Data
Randy L. Ribler, Anup Mathur, Marc Abrams · 1995
Categorical time series data can not be effectively visualized and modeled using methods developed for ordinal data. The arbitrary mapping of categorical data to ordinal values can have a number of undesirable consequences. New techniques for visualizing and modeling categorical time series data are described, and examples are presented using computer and communications network traces.