Tuesday 23rd October, 2012
9:00am to 12:30pm
This tutorial begins by reviewing human perception and our ability to decode graphical information. It continues by:
Since scales (the rulers along which we graph the data) have a profound effect on our interpretation of graphs, the section on general principles contains a detailed discussion of scales including:
* To include or not to include zero?
* When do logarithmic scales improve clarity?
* What are breaks in scales and how should they be used?
* Are two scales better than one? How can we distinguish between informative and deceptive double axes?
* Can a scale “hide” data? How can this be avoided?
The tutorial concludes with additional topics appropriate for the expected audience. Possible topics include deceptive and misleading graphs, graphs that have affected history, how to decorate if appropriate, resolving conflicting advice on data displays, and special requests from the customer.
Participants will learn to:
* Present data more effectively in all media.
* Display data so that their structure is more apparent.
* Understand principles of effective simple graphs to build upon when creating interactive or dynamic displays.
* Become more critical and analytical when viewing graphs.
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