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deer-flow/skills/public/chart-visualization/references/generate_histogram_chart.md
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JeffJiang 4d5fdcb8db Consolidates market and data analysis skills; adds chart viz (#36)
Unifies market analysis, data analysis, and consulting reporting into a comprehensive consulting-analysis skill, enabling a two-phase workflow from analysis framework design to professional report generation. Introduces a DuckDB-based data analysis utility for Excel/CSV files and a chart-visualization skill with a flexible JS interface and extensive chart type documentation. Removes the legacy market analysis skill to streamline report generation and improve extensibility for consulting and data-driven workflows.
2026-02-12 11:08:09 +08:00

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# generate_histogram_chart — 直方图
## 功能概述
通过分箱显示连续数值的频数或概率分布,便于识别偏态、离群与集中区间。
## 输入字段
### 必填
- `data`: number[],至少 1 条,用于构建频数分布。
### 可选
- `binNumber`: number,自定义分箱数量,未设置则自动估算。
- `style.backgroundColor`: string,设置背景色。
- `style.palette`: string[],定义柱体颜色。
- `style.texture`: string,默认 `default`,可选 `default`/`rough`
- `theme`: string,默认 `default`,可选 `default`/`academy`/`dark`
- `width`: number,默认 `600`
- `height`: number,默认 `400`
- `title`: string,默认空字符串。
- `axisXTitle`: string,默认空字符串。
- `axisYTitle`: string,默认空字符串。
## 使用建议
清理空值/异常后再传入;样本量建议 ≥30;根据业务意义调整 `binNumber` 以兼顾细节与整体趋势。
## 返回结果
- 返回直方图 URL,并在 `_meta.spec` 存储参数。