Many Eyes
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Many Eyes: Popular surnames in the U.S. from the 2000 Census (full 2010 data not yet available) by Martin Wattenberg, one of the creators of Many Eyes. Box sizes represent frequency in the total population; color intensity measures name frequency among Hispanics as opposed to the overall population.
Image gallery: 22 free tools for data visualization and analysis - Computerworld
Finding the right way view your data is as much an art as a science.
Many Eyes : Visualization Options
All the visualizations in Many Eyes accept the same data table format except 'Word Tree' and 'Phrase Net' , where as, all the charts in the category 'Analyze a text' understand free text also.
Many Eyes : Data Format
While the unemployment rate for all professional occupations was 4.5% in 2010, all but two categories of tech workers exceeded that number.
