Increasing Visual Scalability
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As we increase the number of objects being represented, the visualization may become more and more difficult to comprehend.
Using a Horizon Chart is a scalable method to represent a large number of line charts.
Consider the following Horizon Chart:
Steps to obtain a Horizon chart from a Line chart:
Consider the following line chart:
Sparklines are small, intense, word-sized graphics with typographic resolution.
They can be placed anywhere words or graphics or numbers are placed: in sentences, maps, graphics and tables.
They are used when we don't have a lot of space to represent data and can be very effective.
Use a diverging color scale with 2 color hues to represent values above and below a certain value (say 0, or the average):
Then, flip the negative values:
Finally, for each band, collapse and stack them one on top of each other.
This leads to a scalable chart as shown above.
