14 October 2012

Install RGL in Ubuntu

I had a few hurdles to get through when trying to install the “rgl” R package in Ubuntu. In summary, here was my solution:

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12 October 2012

Color Palettes in HCL Space

This is a quick follow-up to my previous post about Color Palettes in RGB Space. Achim Zeileis had commented that, perhaps, it would be more informative to evaluate the color palettes in HCL (polar LUV) space, as that spectrum more accurately describes how humans perceive color. Perhaps more clear trends would emerge in HCL space, or color palettes would more closely hug their principal component. For the uninitiated, a good introduction to HCL color spaces is available at this site, or from Mr. Zeileis' own paper here. We'll start by loading in some code written previously (or slightly modified to support HCL). We can plot out an image of the different color palettes we're evaluating once again.

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20 June 2012

Color Palettes in RGB Space

Introduction I've recently been interested in how to communicate information using color. I don't know much about the field of Color Theory, but it's an interesting topic to me. The selection of color palettes, in particular, has been a topic I've been faced with lately.

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22 November 2011

Sermon Sentiment Analysis

Matt Chandler vs. Mark Driscoll

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