Learning R

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Every now and then I would like to change the colours of my plots. ggplot2 [http://had.co.nz/ggplot2] provides several different ways to accomplish this task, however choosing the one that matches my mood on that particular day is always relatively time-consuming. So I decided to make a post highlighting some of the available colour palette options. In this post I will focus on the colour schemes helping to depict categorical data, and will try to use various predetermined colour palettes as much as possible, as I find hard to distinguish between the intricacies of different color spaces including RGB, HSV, HLS, CIEXYZ, CIELUV, HCL (polar CIELUV), CIELAB and polar CIELAB. read more… [http://learnr.wordpress.com/2009/04/15/ggplot2-qualitative-colour-palettes/#more-351] In 2005 dmreview.com [http://learnr.wordpress.com/dmreview.com] conducted a Data Visualization competition for the best depiction of the data presented in each of the four prescribed scenarios. Robert Allison won Scenario 3 that involved the creation of a sales dashboard with priority given for measures indicating poor performance. He explains his approach here http://www.math.yorku.ca/SCS/Gallery/allison/scen3b.htm Jon Peltier suggests yet one more alternative to the ...

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