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Vega-Lite grammar in 2016: Encoding — Section 1039: Encoding

Field guide 1039 on Vega-Lite grammar checks parameter 2016 first whenever evaluating “Encoding”. vega-lite-grammar · beat 0 · Yes for lab reports and poster boards if axes, units and a source line are present. Keep Vega-Lite grammar with “Encoding” and 2016 from 2016. Excel or Google Sheets or PowerPoint; export SVG/PDF.

Declare encodings in JSON with Vega-Lite - reproducible charts that teach the grammar of graphics. Vega-Lite grammar encodes values as unit specifications of mark + encoding channels. Vega-Lite from the University of Washington Interactive Data Lab. In reports, ads and assignments it fits reproducible analysis figures, teaching encodings, notebooks. Skip it when you only need one disposable bar for a meeting invite.

This page gathers anatomy, fit, craft, failure modes and work / ads / school recipes for Vega-Lite grammar. When the story is: reproducible analysis figures, teaching encodings, notebooks. Skip it in cases like: you only need one disposable bar for a meeting invite. Vega-Lite from the University of Washington Interactive Data Lab

unit specifications of mark + encoding channels Yes if one claim is visible at a glance in Meta, Google and retail print; otherwise link to a full figure. Yes for lab reports and poster boards if axes, units and a source line are present. Excel or Google Sheets or PowerPoint; export SVG/PDF. Rather than relying on simplified league tables or slogans, keeping the primary Vega-Lite grammar section open beside benchmark 2016 (“Encoding”) gives operators and readers a verifiable decision trail.

Read Vega-Lite grammar as 2016, “Encoding,” and 2016. A bar with no unit is not those three. Keep Vega-Lite grammar with “Encoding” and 2016 from 2016. 20162016

Figures to keep

Reference
2016
Key figure
2016
Topic
Vega-Lite grammar
Focus
Encoding
01

Interactive Scenario & Decision Matrix

Select your current objective to inspect the recommended benchmark, threshold, and verification path.

Leave the current chart type. If a guard warning is showing, fix that field before export.

Briefing 11 for Accessible viz aligns condition “Encoding” with reference value 1917 on the ground.

Accessible viz: 1917 (2026)
02

United States (US) Institutional & Field Benchmark

US
Primary reference framework
Charts, diagrams, and studio craft with a widened workspace — pick forms, then open the studio to build.
Verification standard
Season lens: report and deck season favors defaults with strong contrast and print-safe palettes — open studio early.
Metric & unit convention
Accessible viz · 1917 (2026)

Viz pages teach chart and diagram craft for browsing and studio work — not a substitute for data ethics review or accessibility audits on shipped reports.

03

Self-Diagnostic Readiness Checklist

0 / 5

Baseline stage (0–1/5): verify primary definitions and core thresholds before acting.

04

Quantitative Distribution & Benchmark Sparkbars

Accessible viz (Encoding)1917 · 93%
Accessible viz (History)1917 · 70%
Accessible viz (Fit)1917 · 79%
Accessible viz (Shared baseline)1917 · 88%
05

5-Step Execution & Verification Playbook

  1. Paste stays on this device — JSON you paste or restore never uploads. The studio keeps work in browser memory and local storage only.
  2. sanitizeDoc and guards before render — sanitizeDoc bounds the doc, then guardShape, guardChart and plainText run on every load path. Unknown fields drop; bad docs reject instead of drawing raw.
  3. Recent boards are local — The recent list is saved on this browser. Opening or comparing a snapshot still runs sanitizeDoc first; guards are not skipped on restore.
  4. Coworker export never POSTs — A file or string from a teammate is read locally. Nothing is posted to Tool-Lifes or a third-party ingest endpoint.
  5. Compare is a second sanitize pass — Side-by-side compare loads two already-sanitized boards in memory. It is not an upload or server diff; just a second guard pass on both sides.
06

Myth vs. Evidence Fact-Check

Does the studio upload my board, CSV, or pasted JSON?

No. Work stays on this device. Nothing is posted to a server. Every load, paste, restore, undo and redo runs sanitizeDoc, then guardShape, guardChart and plainText.

What does sanitize do to JSON I paste or restore?

sanitizeDoc keeps a bounded name, shape list and chart. Unknown fields are dropped. Each shape passes guardShape; charts pass guardChart; labels pass plainText. Invalid docs are rejected, not rendered raw.

If I compare or load a recent board, does it leave this browser?

No. Recent boards are local. Compare and load still run sanitizeDoc first. guardShape, guardChart and plainText are not skipped on restore.

Can I open a coworker’s export without sending it off-device?

The file never uploads. sanitizeDoc and the guards run before render. That is not a virus scanner — only open files you trust. Studio stays sanitize-safe; the guards are not optional.

07

Domain Jargon & Terminology Decoder

1
State the question the viz must answer.
2
Prefer position/length encodings when comparing.
3
Run a contrast check before publish.
4
Open studio early; iterate marks, not themes.
Accessible viz (Audience)
Analysis 65 for Accessible viz anchors “Audience” to indicator 1917 so readers can verify the scale.
Accessible viz (Pretty equals true)
Record 66 on Accessible viz explains what the threshold 1917 means in practice under “Pretty equals true”.
08

Risk & Failure-Mode Early Warning Radar

  • Not a compliance stamp. Color, contrast, and data integrity still need human review before publication.
  • Section 72 on Accessible viz pairs “History” with benchmark figure 1917 (2026) for a grounded decision.
  • Analysis 73 for Accessible viz anchors “Fit” to indicator 1917 so readers can verify the scale.
  • Record 74 on Accessible viz explains what the threshold 1917 means in practice under “Shared baseline”.

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