Unidimensional data: A graphical analysis

Unidimensional data: A graphical analysis

The purpose of this article is three-fold: to demonstrate the interface between the theory of scaling and graph theory, to determine the class of unidimensional graphs, and to provide a method for analyzing data which consists cf both dominance and indifference relations. The most definitive work on the subject of data analysis is Coombs’ (1976) A Theory of Data in which eight types of data are...

A graphical instrument for performance analysis of contractors

The relationship between the manufacturer and supplier has changed from one of competition into that of greater cooperation during recent years. The selection and evaluation of suppliers are primary and important issues when an enterprise implements Supplier Relationship Management (SRM) and Total Quality Management (TQM). Much research indicates that most enterprises tend to evaluate their sup...

The Data Viewer: a Program for Graphical Data Analysis

This thesis describes some new graphical methods for analyzing high-dimensional data based on motion through sequences of projections. 3-D point cloud rotations provide the canonical example of such methods. The grand tour (Asimov 1985), is a recent attempt at devising a higher 4imensional analog. It is insufficient for data analysis purposes b~cause the motion paths areirandofuly constructed, ...

Perhaps Unidimensional Is Not Unidimensional

Miller (1956) identified his famous limit of 7 ± 2 items based in part on absolute identification-the ability to identify stimuli that differ on a single physical dimension, such as lines of different length. An important aspect of this limit is its independence from perceptual effects and its application across all stimulus types. Recent research, however, has identified several exceptions. We...

Comparison of Graphical Data Analysis Methods