Sparkline Graphs for Ruby
Description
Sparklines are small graphs for use in tables or inline with text. Invented by Edward Tufte. Implemented in many languages.
Source
Get it at GitHub.
Samples
 |
Bar graph with color differentiation and target line. |
 |
Stephen Few’s bullet graph with acceptable ranges and a target. |
 |
Pie—Shows a single percentage |
 |
Smooth—Shows continuous data |
 |
Area—Highlights data with a colored threshold |
 |
Discrete—Uses vertical lines |
Source
sudo gem install sparklines
Or, get it from RubyForge.
Source repository is at GitHub.
Documentation
In the wild
Posts about Sparklines
Other Graphing Libraries
- Gruff—More full-featured graphs with labels, colors, and more complicated graph types.
Books
If you’re interested in the presentation of data, you MUST at minimum buy:
- Information Dashboard Design by Stephen Few. Chapter 4 alone is worth the price of the book. It talks about the way our minds perceive graphical representations and which ones are most effective.
Highly recommended are also
- The books of Edward Tufte
- Show Me the Numbers also by Stephen Few.
Nuby on Rails
Geoffrey Grosenbach / Ruby / Code / Graphics / Design / Rails / Merb / Javascript / CSS
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