http://www.elearningpost.com/archives/006986.asp schrieb / wrote: Concept: Bar Graphs: Wonderful stuff, as usual, from Infovis. This time the subject is bar graphs. ‚Bar graphs or bar charts are ubiquitous visual representations, but they are not always correctly used and many times we don’t get the most out of them. We review here their essence, properties and utilization.‘ http://www.infovis.net/E-zine/2004/num_157.htm

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