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Question: What is the difference between WHERE and IF statements in SAS?
Answer: WHERE is used in data steps and procedures to subset observations, while IF is used within the data step to conditionally execute statements based on a specified condition.

Example:

DATA new_dataset; SET old_dataset; WHERE variable > 50; IF variable2 = 'Yes' THEN new_variable = 'Positive'; ELSE new_variable = 'Negative'; RUN;

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