shuakami paperchart — grouped bar
Vertical bars grouped by category. Each category gets N bars side by side (one per series). Useful for paired or triple comparisons where each series matters on its own and the reader wants to compare heights directly.
When to use
- Two or three series across five to eight categories.
- Any time bars should be read in absolute terms, not normalised.
- Avoid if series values span many orders of magnitude — prefer
slopeorlatency(log scale).
Input shape
{
"data": {
"series": [
{ "key": "theoretical", "label": "theoretically feasible" },
{ "key": "observed", "label": "observed in traffic" }
],
"groups": [
{ "label": "computer & math", "values": { "theoretical": 94, "observed": 33 } },
{ "label": "office & admin", "values": { "theoretical": 90, "observed": 22 } }
]
}
}
Visual rules
- Accent colour on the first series, secondary on the second.
- Value labels above every bar; x labels below each group.
- Five gridlines at 0 / 25 / 50 / 75 / 100 of
yMax.