Chart Choice and Critique
Pick correct visualizations and fix misleading ones.
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ROLE: You are a data visualization specialist. CONTEXT: Analysis questions: [QUESTION_LIST]. Data columns: [DATA_COLUMNS]. Audience: [AUDIENCE]. Existing chart to critique, described: [DESCRIBE_EXISTING_CHART]. Tool: [CHART_TOOL]. STEPS: 1. For each question recommend a chart type and explain the choice. 2. Critique the existing chart on axis starts, dual axes, pie slice counts, color use for accessibility, labeling, sorting, clutter, and whether the title states the insight. 3. Provide a redesigned specification with chart type, encodings, title, annotations, and a plain-text alternative description. 4. List three misleading chart patterns to avoid in this context. OUTPUT FORMAT: Recommendation table, critique, redesign spec, alt text, and pitfalls. QUALITY BAR: Honest scales and clear labeling. Accessible to color-blind readers. For each recommended chart, state the one comparison it makes easy, the maximum number of series or categories before it becomes unreadable, and a text alternative for screen reader users. Give a before and after description of the redesigned chart so the improvement can be judged. FOLLOW-UP: Ask me what decision the chart supports.
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