Individual skill

grouped-statistics

对多 Sheet 的 Excel 文件进行行数统计、数据合并与前向填充。

skills/sn-da-excel-workflow/capability/excel-data-statistics/grouped-statistics/SKILL.md

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## Skill Steps

> **Note**: This sub-skill covers one step of the Excel analysis workflow. For the full pipeline (file reading, row counting, large-file optimization, export), see the parent workflow SKILL.md.

Step1 提取关键维度与指标信息,处理合并单元格缺失值,并进行多表交叉分析与排序。
```python
import pandas as pd

# 设定目标列名
group_col = '行业名称'
target_val_1 = '企业单位数'
target_val_2 = '工业总产值'

# 读取第一个 Sheet 并清洗
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