#TweakThursday 19: ASCII as Data Marks
by Alexander Mou
Especially in tooltips, we are limited to using ASCII/Unicode characters. Some of them can be used as data marks to provide data visualizations. ASCII art have been around for a long while. With ASCII, we can create very expressive art form if we dare to be creative.
For example, in restaurant ratings, we have seen expressions like
- Expensive: $$$
- Moderate: $$
- Cheap: $
Depending on countries and being consistent with context, we can replace the above $ by € or ¥.
In various ratings such as movies or product reviews, we have seen stars being widely used.
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