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codebook-pass

separate

调查数据清洗Skill。处理调查数据（CGSS/CHIP/CSS等）时的标准化清洗流程，包括缺失值处理、变量编码统一、数据异常值检测。触发词：数据清洗/调查数据/codebook/数据清洗流程/问卷数据处理

When to use

• Survey data cleaning
• Missing value handling
• Variable coding unification
• Data outlier detection
• Panel data construction
• Merging multi-year survey data

When not to use

• Modifying raw data directly
• Filling missing values with 0 or meaningful numbers

Skill page

Source