Data Visualization Outline • Visualizing data: Mapping data onto aesthetics • Coordinate systems and axis • Color Scales • Visualization for different types of data • • • • • Amount Distribution Proportions Associations Uncertainty • ... Visualizing data: Mapping data onto aesthetics • Commonly used aesthetics in data visualization: • • • • • • Position Shape Size Color Line width Line type 23 Which one(s) can only represent discrete data?? Scales map data values onto aesthetics • The mapping between data values and aesthetics values is created via scales. • A scale must be one-to-one 24 • Data visualization is part art and part science. Examples of ugly, bad, and wrong figures 25

Visualizing Data - Mapping Data Onto Aesthetics

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