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Data Visualisation
Data Visualisation
with Tableau
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What is Data Visualisation?
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What is Data Visualisation?
• Data visualization is visual representation or creation and study of
the visually represented data
• Communicate information clearly and efficiently using Graphs, Plots,
Statistical graphics etc.
• Numerical data may be encoded using dots, lines, or bars to visually
communicate a quantitative message
• It makes complex data more accessible, understandable
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Have we experienced visualised data earlier?
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John_Snow_choleraData Visualisation
What is Data? How is it generated?
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Importance of Visualizing Data
• Visualizations casts data into a format that can be easily grasped and understood
much more quickly and easily than the raw number alone.
• Visualization is that it allows us access to huge amounts of data in ways that
would not be otherwise possible.
• Visualizations allows to access more actionable insights.
• Visualizations allows data to be presented both graphically and interactively.
• Visualizations are effective at conveying knowledge.
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