Difference between IN and IF statements in SAS

In SAS, the IN statement is used to specify a list of values that a variable must match for a condition to be true. It is typically used in a WHERE clause or in the data step to filter observations based on specified values.

On the other hand, the IF statement is a conditional statement that is used to evaluate a specified condition for each observation. If the condition is true, the subsequent statements are executed. It can be used to create subsets of data based on specified conditions.

In summary, the main difference between IN and IF statements in SAS is that the IN statement is used for matching values, while the IF statement is used for evaluating conditions on observations.