Abstract
Gauguin (Grouping And Using Glyphs Uncovering Individual Nuances) is statistical data visualization software for the interactive graphical exploration of multivariate data using glyph representations. Glyphs are defined as geometric shapes scaled by the values of multivariate data. Each glyph represents one high-dimensional data point or the prototype (average) of a group or cluster of data points. This paper reviews the capabilities, functionality, and interactive properties of this software package. Key features of Gauguin are illustrated with data from the Programme for International Student Assessment.
Original language | English |
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Pages (from-to) | 134-144 |
Number of pages | 11 |
Journal | Methodology |
Volume | 7 |
Issue number | 4 |
DOIs | |
State | Published - 2011 |
Externally published | Yes |
Keywords
- Clustering
- Data visualization software
- Empirical item response function
- Gauguin
- Glyph
- Interactive graphics
- Invariant item ordering
- Item analysis
- Monotonicity
- Multidimensional scaling
- Programme for International Student Assessment (PISA) data
- R