by: Dan Appleman @ pluralsight
The Rules:
- Start with story you want to tell, or question you want to ask
- Have a contrast to show the story or question
- Focus on data
- Don't "make people think" (make it obvious)
Humans are good in observing:
- differences in nearby objects (edges, side-by-side)
- spotting contrast, object on a distinct background
- and observing moving objects
and nothing else. Objects that are far away can't be compared.
Comparing area / size is very difficult, as well as similar colors.
Comparing area / size is very difficult, as well as similar colors.
Only recommended charts:
- Horizontal bar charts
- Vertical bar (column) charts (same width bars)
- Line charts
- Scatter charts
- plus table with original data
Stacked bar charts, as well as pie charts are not recommended.
Use multiple charts instead mixing multiple.
One more JavaScript/Canvas charting library (rgraph.net)
RGraph: HTML5 charts library - Free and Open Source (MIT license)
Is using using SVG / VML, bust still is simple JavaScript.
Warning: Google's library must be included from google.com, not re-distributed.
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