want to ask about proc surveyfreq analysis i can't solve this problem and need a help age 30 is column for test 'data usee; set usee;if 30 <= age then age30=1; else age30=0; run;' use this code ff_use is real for analysis 'data use; set use; if age_all='.' or check ='.' or he_wt=. or he_ht=. then ff_use = 0; run; data use; set use; if ff_use=. then ff_use=1;run;' take from multiple Variables really cant find what wrong in my data... column attribution also same , type, format..all same how can i make table ff_use '0'
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