Hi, all. I am trying to run a two-sample ttest on a variable with a class that contains three levels. I understand that, by using a WHERE expression, I can omit the extra level. However, my code is failing me. proc ttest data=totalmvp; var pt0; class unit; where unit= ; run; I do not know what to place after the "unit=" in the expression. I am trying to keep levels called "offense" and "defense" while omitting a level called "special teams."
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