Data visualization is the presentation of data/information in a pictorial or graphical format.
eg. charts and graphs in excel,stock market technical chart analysis,Google analytics etc..
Data visualization helps decision makers to find new patterns,trends and correlations easily,which may not detected in text based data.
Data visualisation software displays data in more sophisticated ways such as bar charts,pie, infographics,geographic maps,heat maps,dials and gauges,fever charts and sparklines,etc..
Data visualization can be static or interactive. For centuries, people have been using static data
visualization like charts and maps. Interactive data visualization lets people drill down into the
in details of these charts and graphs, and can interactively change which data they see and how it's processed.
Here we have Top 10 countries by online population, February 2014 Data in text format
country online population
France 42.4 million
China 354.6 million
United States 194.7 million
Italy 30.5 million
India 80.1 million
Japan 73 million
Russian Federation 66.8 million
Germany 52.6 million
United Kingdom 39.4 million
Brazil 68.1 million;
what is the most online populated country?
what is the least online populated country?
what is the 3rd most online populated country?
it might take some time answer these question but if we have this data in a visualization like blow we can answers for above questions in fraction of seconds
There are many data visualization tools like tableau,qlikview,spotfire,chart.js,birst,etc., are available in market.
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