Beth Schultz

4 Quick Tips for Data Visualization Newbies

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SRS1
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Master Analyst
Visualization
SRS1   11/19/2013 4:42:46 PM
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Visualization of info done properly can help show critical info better than any chart. Starting with good quality data and implamenting it onto a map, as you've done, makes it easier to see a problem and solution. While I saw some people commented on the color choices as an issue, I can still see the data and know that if given more room for this chart it would be easier to see difference in colors.


BethSchultz
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Re: Start at 0
BethSchultz   11/12/2013 5:43:00 PM
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Jeff, when you say you make what you're doing clear in the presentation do you mean the oral presentation that comes along with delivering the visualization or in the visual presentation itself? I'm wondering, because while the former helps there is the problem that the visualization lives outside the presentation, no? 

Jeff
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Data Doctor
Start at 0
Jeff   11/12/2013 3:24:13 PM
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I'm guilty of focusing a graph in on the interesting part and not showing from 0.  But in my defense, I make it very clear in the presentation what I'm doing.

You see this kind of thing on Yahoo finance all the time and it's often misleading.  Great job Tricia!

 

BethSchultz
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Re: Fine Points
BethSchultz   11/11/2013 8:38:54 AM
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@CandidoNick, to me this came off as rather amateurish -- somebody playing around with heat map capability without really thinking about the data presented and readability (and who knows, maybe that was the point -- to play around with heat maps but not for "real" use). There are way too many categories, and therefore colors, to make this easily digestible, which makes it quite ineffective. Plus, as Tricia pointed out during the lecture, the salary ranges aren't equal in all categories. Another no-no.

CandidoNick
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Prospector
Re: Fine Points
CandidoNick   11/10/2013 11:15:12 PM
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Absolutely. With these heat maps, especially with such subtle contrast, there was no need for so many levels in the legend. Only added to the confusion.

Alexis
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Data Doctor
Re: Fine Points
Alexis   11/10/2013 3:39:26 PM
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I agree candidonick - more contrast!

TAanderud
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Re: Fine Points
TAanderud   11/10/2013 3:29:05 PM
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I wasn't so sure that having so many levels was necessary.  Is there a tremendous difference in 40k and 50K?  Especially when I look at the data distribution.

CandidoNick
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Prospector
Re: Fine Points
CandidoNick   11/9/2013 1:06:43 AM
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I understand that heat maps are meant to get more vibrant as the concentration increases, so I assume differentiated colorings would defeat some of the purpose. However, greater contrast would be a welcome prospect.

Michael Steinhart
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Re: Fine Points
Michael Steinhart   11/8/2013 2:59:08 PM
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That's an interesting point, CandidoNick, about heat maps and the color gradations being too subtle. Do you think different colors and higher contrast would make heat maps easier to comprehend? 

CandidoNick
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Prospector
Fine Points
CandidoNick   11/8/2013 1:36:01 PM
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How info appears may be the most critical part of presenting compelling data. These points are all fine, quality ideas that deserve consideration when preparing data for the big screen.
As for Aanderud's data map, the issue lies in the color choices. They are far too similar to one another, in my mind. And Alaska is very stretched out, hahaha.

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