Tuesday, June 15, 2010
Three Web-based Data Visualization Tools
7:23 PM |
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Michael Perkins |
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I recently posted a couple of blog entries that included data charts. I initially created these charts in Microsoft Excel and then converted them into images for inclusion in the post. This process was labor intensive, and the result could best be described as embarrassing. Excel is a wonderful tool with a nice charting facility, but it was not intended for the creation of charts for the web. So I decided to explore alternatives. I took a close look at three free web-based data visualization tools. To get a good feel for each tool, I reworked two of my previous blog posts in each tool. Here are my thoughts.
Tableau Public
Tableau Public is a tool for creating complex, web-based data visualizations. The tool can be used to create highly interactive, multi-chart visualizations with dynamic filtering, highlighting and drill-down capabilities. Though I rarely have use for the more powerful features of Tableau Public, I was attracted to its capabilities for customizing the look-and-feel of charts and for adding text and annotations. However, Tableau Public's powerful set of features comes with a cost in usability. Of the products I reviewed, Tableau Public is by far the most difficult to use. Effective use of the product requires a significant investment of time and effort. It is not for the casual user.
I spent several hours learning the basics of Tableau Public and was able to create some very nice visualizations. Unfortunately, for my purposes, the visualizations have unacceptably slow load times. Though I am happy with the charts I was able to create with Tableau Public, I am not willing to subject my readers to such slow page loads. Tableau Public is a great solution for applications that require sophisticated, interactive visualizations where slow load times can be tolerated. It is not appropriate, however, for the light charting I need for my blog.
To get a feel both for the power of Tableau Public and for the time it takes to load its visualizations, click here to read an old post that includes a sophisticated Tableau Public visualization.
Many Eyes and Swivel
Many Eyes and Swivel are similar in that they trade power for ease of use. I was able to create decent charts on both of these systems in minutes. Unlike Tableau Public, however, they do not offer a lot of control over the finished product. After spending time with Tableau Public, I was reluctant to give up some its features such as the ability to add text and annotations to charts. I finally decided, however, that for my purposes, the superior productivity and performance of Many Eyes and Swivel outweigh this loss of functionality.
Many Eyes offers more chart types than Swivel, but I found the look and feel of the Swivel charts to be more appealing. The Swivel charts are simple and elegant, and they load very quickly. They work well in a blog post. Consequently, I selected Swivel as my tool of choice. Click here to view a version of my recent federal spending post that was reworked using Swivel.
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