The Computerworld article, "22 free tools for data visualization and analysis
Got data? These useful tools can turn it into informative, engaging graphics",
by Sharon Machlis, presents a wonderful array of FREE tools with varying skill levels. I've taken just the skill levels one and two here for my own beginning interest and exploration.
1. Users who are comfortable with basic spreadsheet tasks
2. Users who are technically proficient enough not to be frightened off by spending a couple of hours learning a new application.
Google Fusion Tables, Many Eyes, VIDI, OpenHeatMap, TimeFlow, DataWrangler, Google Refine, Zoho Reports, Google Chart Tools, and IBM Word-Cloud Generator.
To begin, I'll explore
Many Eyes
and OpenHeatMap.
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