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Quick answers
When should I pick Data-to-chart decision?
When the story is: first 60 seconds of any report, ad claim or assignment figure.
When should I avoid Data-to-chart decision?
Skip it in cases like: picking a chart because it looks fancy in the template gallery.
Who invented or popularised it?
Bertin semiology; modern chooser guides and grammar-of-graphics tools
What does it encode?
task type mapped to mark and channel (length, position, angle, color)
Is it OK in ads?
Yes if one claim is visible at a glance in Meta, Google and retail print; otherwise link to a full figure.
Will a teacher accept it?
Yes for lab reports and poster boards if axes, units and a source line are present.
Data-to-chart decision encodes values as task type mapped to mark and channel (length, position, angle, color). Bertin semiology; modern chooser guides and grammar-of-graphics tools.
In reports, ads and assignments it fits first 60 seconds of any report, ad claim or assignment figure. Skip it when picking a chart because it looks fancy in the template gallery.
Mistakes
- Failure modes 1 — picking a chart because it looks fancy in the template gallery
- Failure modes 2 — 3-D pies and perspective bars
- Failure modes 3 — Dual axes that fake a correlation
- Failure modes 4 — Truncated axes that shout a small delta
- Failure modes 5 — Legend only, no direct labels
- Failure modes 6 — Missing source, unit or period
Fixes
- Fixes 1 — Return to first 60 seconds of any report, ad claim or assignment figure.
- Fixes 2 — Flat, one axis, direct labels.
- Fixes 3 — Color-blind-safe palette plus pattern.
- Fixes 4 — Rewrite the title as a claim and add a source line.
Data-to-chart decision: honour task type mapped to mark and channel (length, position, angle, color), and switch when picking a chart because it looks fancy in the template gallery.