Multivariate Visualization. Projection Distortion.

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Presentation transcript:

Multivariate Visualization

Projection

Distortion

Parallel Coordinates

Pairwise Comparisons

Graphical Excellence Minimize non-data ink Allow data ink to perform more than one purpose Carry data information Serve a design function Show multiple pieces of data Multifunctioning Graphical Elements

Principles Mobilize every graphical element, perhaps several times over, to show the data

Tufte pg 152

Data-Built Data Measures Graphical element that plots the data: data measure Ayres (1919) Number of divisions Which divisions Duration of stay

Dot Maps

Chernoff Faces

Bubble Plot Authorline chat thread Red: initiated by author Blue: initiated by someone else

Color

Principles Mobilize every graphical element, perhaps several times over, to show the data Maximize Data Density and the size of the Data Matrix Data rich  context and credibility

Small Multiples Graphics can be shrunk Series of graphics showing same combination of variables Indexed by changes in another variable

El Nino

Interaction vies/ _REVENUE_GRAPHIC.html vies/ _REVENUE_GRAPHIC.html