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8 Tips for Doing Data Visualization Right
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Re: Legends are evil, so are bad bar charts
  • 4/24/2014 3:10:10 AM
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@MTraylen--The correct answer to your questions may be more a matter of cognition, psychology, etc.  If you have a cognitive bias to assign too much value to small percentage variations, then a non-zero baseline will play to your bias.  In the car example, if I'm a marketer and I'm aware that people will ignore the numbers and instead compare the height of bars in an absolute sense, then if I can offer $5 lower on a $25,000 purchase, and I set my baseline at $24,990 and max at $25,010 then it makes the apparent difference seem much, much larger.  This sort of thing is stock and trade for marketeers.  Full disclosure: I have had the word Marketing and Markets in my title on more than one occasion.

Re: Tips for Doing Data Visualization Right
  • 4/23/2014 11:09:25 PM
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..

I especially like the pie chart example where the pieces of the pie add up to 193%.

Re: Legends are evil, so are bad bar charts
  • 4/23/2014 3:22:07 PM
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Replying to eafpres about baseline at 0, I normally agree with you, but in the case of credit scores isn't the baseline somewhere way above 0?  Aren't credit scores in fact, over-inflated and therefore this is an exception to this rule?  Another I would argue would be car prices; why would you need ot show the baseline at $0 ever for car prices?  The baeline needs to be relevant, consistent and comparable I would argue.

Re: Data for Educators
  • 3/18/2014 7:35:30 AM
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shit.........

Re: Tips for Doing Data Visualization Right
  • 4/21/2013 9:48:17 PM
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@shehan. I haven't tried it myself, but have heard good things about it from a user I interviewed at a food company quite some time ago: IPad Dashboard Spices Up Food Maker's BI Strategy

Re: Tips for Doing Data Visualization Right
  • 4/20/2013 9:39:26 AM
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I really like the way smartphone data is show on the third slide, this is one of the best ways to share information.

Re: Tips for Doing Data Visualization Right
  • 4/20/2013 9:36:09 AM
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@Beth – It's always nice to see visual data on all colors in presentations and reports than the traditional data legends. Have you had a chance to try Qlikview, I think it's one of the best when it comes to representing information graphically.

Data for Educators
  • 4/11/2013 12:37:09 PM
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Thanks - I really enjoyed this! Though there are differences (e.g., veering from the norms of other displays), there is much crossover between data visualization tips and the best practices for data being presented to educators (avoid legends, maintain credibility, etc. - www.overthecounterdata.com/otcd ). In both areas, tools like your tips that get people talking about the importance of design are so important. The more people realize the importance of design, the better for everyone seeking to understand the data being presented. Thanks again! :-)

Re: Legends are evil, so are bad bar charts
  • 4/11/2013 7:39:40 AM
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Eafpres Any other suggestions for good visualizations or charts?

Re: Legends are evil, so are bad bar charts
  • 4/10/2013 11:58:57 AM
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I see your point eafpres -- the variation would seem less significant if a zero baseline was used

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