Explain the usage of trailing @@.

Explain the usage of trailing @@.

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: interviewbit, sas, topic-specific, statistics

参考答案摘要

Occasionally, multiple observations need to be created from a single record of raw data. In order to specify how SAS will read such a record, you can use the double trailing at-sign (@@ or "double tra...

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