The units of measure employed-plotting differences Introduction Terminology 10 Commandments PowerPoint Best/Worst Conclusion The optical illusion: The lines are only one unit apart across the entire range. The Ten Commandments…of good graphics Thou shalt pay very close attention to thy axes, for therein lieth great opportunity to succeed or to fail. The units of measure employed-what to plot Introduction Terminology 10 Commandments PowerPoint Best/Worst Conclusion The raw data: interesting but not as informative… … as the actual difference between the lines. The units of measure employed-alternate labels Introduction Terminology 10 Commandments PowerPoint Best/Worst Conclusion How relate to log 2 ? Now these numbers we understand! The Ten Commandments…of good graphics Folded, spindled, and mutilated from: Introduction Terminology 10 Commandments PowerPoint Best/Worst Conclusion Terminology Introduction Terminology 10 Commandments PowerPoint Best/Worst Conclusion Terminology Introduction Terminology 10 Commandments PowerPoint Best/Worst Conclusion aka, y axis aka, x axis Some display methods lead to efficient, accurate decoding, and others lead to inefficient, inaccurate decoding.” - William Cleveland The “Grand Unification Philosophy” of good graphics minimize the mental gymnastics that the viewer must go through to understand the graph No matter how clever the choice of the information, and no matter how technologically impressive the encoding, a visualization fails if the decoding fails. Then the information is visually decoded. Introduction Two goals of good graphics Clarity revealing the story in the data Ease of visualizing the plotted data Introduction Terminology 10 Commandments PowerPoint Best/Worst Conclusion “ When a graph is made, quantitative and categorical information is encoded by a display method. So far, the Universe is winning.” -Richard Cook, science fiction author, The Wizardry Compiled Due to lack of training Not usually covered in university classes Introduction Terminology 10 Commandments PowerPoint Best/Worst Conclusion
JMP GRAPH BUILDER BORDER BAR GRAPH SOFTWARE
Introduction The Problem: a plethora of options/features/capabilities Confusion of what can be done with what ought to be done Attributable to ignorance… “Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. Steve Figard, Ph.D., Abbott Laboratories, Abbott Park, IL Just Because You Can, Doesn’t Mean You Should – The Elements of Graphing Data WellĪgenda/Objectives of Presentation Introduction Terminology The Ten Commandments of Good Graphics A Word about PowerPoint The “Best” & The “Worst” Concluding Statement Just Because You Can Doesn\'t Mean You Should - Graphing Data Well
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