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quality_flag_field_check

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质量标识字段检测工具。检查数据表是否配置质量标识字段,验证标识字段的存在性、值规范性 (是否为预定义合法值)、非空完整性,标记不合格数据。 当用户提到质量标识检查、QC字段检测、标识字段合规等需求时使用此skill。

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Source SKILL.md: https://github.com/cas-bigdatalab/piflow/blob/HEAD/workspace/skills/quality_flag_field_check/SKILL.md

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quality_flag_field_check 质量标识字段检测Skill

功能概述

对应功能说明(二)模块中的标识符检测需求。三步检查:(1) 字段存在性——指定质量标识列是否存在;(2) 空值检测——标识字段是否为空;(3) 值规范性——标识值是否在预定义合法值列表中。

处理逻辑

  1. 读取输入数据表
  2. 检查 flag_field_name 是否存在于表列中
  3. 若存在:检查空值、检查值是否在 valid_values 中
  4. 若不存在:全部行标记为问题
  5. 输出带质控标识的结果文件

支持的文件格式

  • CSV (.csv) / TSV (.tsv) / Excel (.xls, .xlsx) / SPSS (.sav)

使用方法

python scripts/quality_flag_field_check.py \
    --input_path <输入文件> \
    --output_path <输出文件> \
    --flag_field_name "qc_flag" \
    --valid_values "PASS,FAIL,WARN" \
    --qc_mark QC0009

参数说明

参数必填说明
--input_path是输入文件路径
--output_path是输出文件路径
--flag_field_name是质量标识字段名
--valid_values否合法值(逗号分隔),不填则只检查存在性和非空
--qc_mark是质控标识
--mark_field_name否质控标识字段名(默认QC0000)

输出示例

[QC FAIL] 质量标识字段校验未通过 (2 项问题):
  [空值] 字段 'quality_flag' 有 1 行空值
  [非法值] 字段 'quality_flag' 有 1 行不在合法值 ['PASS', 'FAIL', 'WARN'] 中,示例: ['UNKNOWN']
[OK] 结果已写入 -> output.csv

注意事项

  1. 若未指定 valid_values,只检查字段存在性和非空,不检查值的具体内容
  2. 空值(NA/NaN/None)单独统计为 [空值] 类别
  3. 字段缺失时所有行标记为不合格