Author_Institution :
Rose-Hulman Inst. of Technol., Terre Haute, IN, USA
Abstract :
Conventional data displays such as pie charts, bar charts, and tables are generally ineffective at communicating the logic of an argument. Effective alternatives exist are less well-known. Reasons for the prevalence of pie charts, bar charts, and tables include: they are native to Office software; engineers and engineering educators generally lack training in visual rhetoric; new designs require additional work and technical skill of the author; and audiences resist change. This workshop addresses some of these barriers to change. The superior alternative to pie charts, bar charts, and (some) tables is the dot plot, a display type absent from Office but native to R, an open-source software environment originating in the statistics community. Workshop participants learn why dot plots are effective and how to create them using R. The workshop is designed for R beginners. The agenda includes active learning, demonstration, and discussion. Programming topics are developed using self-paced tutorials. Participants, from any discipline, interested in learning why and how to improve their graphical communication of quantitative data are welcome. Participants should bring wireless-capable laptops. After completing the workshop, participants should be able to describe the limitations of pie charts, bar charts, and tables, cite principles underlying more effective graphs, and use R to create dot plots. By developing participants´ technical skills and rhetorical skills in this way, we serve the greater goal of improving their abilities to explore data and communicate findings, helping them use the logic of a display design to better support the logic of their argument.
Keywords :
computer aided instruction; computer graphics; data analysis; mathematics computing; public domain software; Office software; R graphics workshop; active learning; bar charts; data displays; dot plots; engineering educators; open-source software environment; pie charts; rhetorical skills; self-paced tutorials; statistics community; technical skills; visual rhetoric; wireless-capable laptops; Bars; Conferences; Rhetoric; Software; Tutorials; Visualization;