Question

first question previous question question 17 of 22 next question last questionunsaved change moving to another question will save this response. which statement is false? a. at the end of each iteration of the data step, the contents of the pdv are always written to the output sas data set. b. when sas returns to the top of the data step, the values of all variables in the pdv are set to missing. c. at compile time, the pdv holds the variable name, type, byte size, and initial value of all variables referenced in a data step. d. all of the above statements are false. e. all of the above statements are true.

Answer 1

The statement that 'At the end of each iteration of the data step, the contents of the PDV are always written to the output SAS data set' is false because although it happens in most cases, it is not obligatory and there are exceptions when it does not happen.

Step-by-step explanation:

In the given question, the statement 'At the end of each iteration of the data step, the contents of the PDV are always written to the output SAS data set.' is false (option A). In most cases, the contents of PDV (Program Data Vector) are written to the output SAS data set at the end of each iteration of the data step. However, it is not a must and it does not always happen. For instance, if we use conditional statements like IF-THEN-DO and OUTPUT statement in the data step, data will be written to the SAS data set as per conditions specified by these statements, not at the end of every iteration.

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