Multiple choice technology programming languages

What is the use of the double trailing "@@" in an input statement?

  1. loads a new record into the input buffer if an end-of-record is found in the current record

  2. holds the current data line in the buffer for another input statement to process

  3. can be used to read multiple observations from a single data line

  4. is a syntax error
Reveal answer Fill a bubble to check yourself
B,C Correct answer
Explanation

In SAS, double trailing @@ in an INPUT statement holds the current data line in the input buffer, allowing multiple INPUT statements to read data from the same line. This enables reading multiple observations from a single data line, which is the practical use case.

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