Hello, I have a large dataset that contains multiple categorical variables. For each variable, entry options are: Yes / No / Unknown / Missing I need to transform each variable into a binary variable: Yes vs. No/Unknown/Missing. Two questions: 1) Is there a way to do this directly in proc freq or is it necessary to create a large number of new variables (e.g. apple_bin, orange_bin) in a data step first? 2) If a data step is necessary, is there a way to generate all of these new variables using a do loop? Each variable has a different name (e.g., apples, oranges, bananas) so I can't use a range (var1-var3). Thanks very much, Emily
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