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Escaping RGBland: Selecting Colors for Statistical Graphics

Zeileis, Achim and Hornik, Kurt and Murrell, Paul (2007) Escaping RGBland: Selecting Colors for Statistical Graphics. Research Report Series / Department of Statistics and Mathematics, 61. Department of Statistics and Mathematics, WU Vienna University of Economics and Business, Vienna.

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Statistical graphics are often augmented by the use of color coding information contained in some variable. When this involves the shading of areas (and not only points or lines) - e.g., as in bar plots, pie charts, mosaic displays or heatmaps - it is important that the colors are perceptually based and do not introduce optical illusions or systematic bias. Here, we discuss how the perceptually-based Hue-Chroma-Luminance (HCL) color space can be used for deriving suitable color palettes for coding categorical data (qualitative palettes) and numerical variables (sequential and diverging palettes).

Item Type: Paper
Keywords: qualitative palette / sequential palette / diverging palette / HCL colors / HSV colors / perceptually-based color space
Divisions: Departments > Finance, Accounting and Statistics > Statistics and Mathematics
Depositing User: Repository Administrator
Date Deposited: 19 Nov 2007 22:09
Last Modified: 27 Feb 2017 14:25
URI: http://epub.wu.ac.at/id/eprint/1692


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