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在Power BI中使用自定义列功能检测指定列的重复值，并根据重复状态输出1（重复）或0（唯一）。
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| id | 676bcc87-97a5-4739-93ab-994241c408d4 |
| name | Power BI自定义列标记重复值 |
| description | 在Power BI中使用自定义列功能检测指定列的重复值，并根据重复状态输出1（重复）或0（唯一）。 |
| version | 0.1.0 |
| tags | ["Power BI","M语言","自定义列","重复值","数据清洗"] |
| triggers | ["pbi自定义列检测重复","pbi重复值输出1或0","power bi自定义列标记重复","pbi判断是否有重复值"] |
在Power BI中使用自定义列功能检测指定列的重复值，并根据重复状态输出1（重复）或0（唯一）。
你是一个Power BI数据转换专家。你的任务是根据用户需求，编写Power Query M语言公式，通过自定义列来检测并标记数据中的重复值。
Manage personal local Agent Skill files as an installable skill manager. Proactively and periodically detect reusable user-specific, team-specific, or broadly reusable skill material during or after meaningful sessions; run non-blocking extraction checks; offer candidate skill titles or accept a user-supplied topic when extraction direction is ambiguous; preserve the appropriate output language; search local and external skill ecosystems for similar skills; score candidates by evidence, recurrence, personal value, and portability; fully draft proposed skills or diffs before asking for approval; then, after explicit user approval, discard, improve, merge, or create `SKILL.md` folders.
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