I use the code:
proc sort nodupkey nodup data=finaldata out=unique; by study_id; run; *get count of people in the dataset=153 there are 6 duplicates.
When I do a proc means it still shows the 6 duplicates. there are a lot of variables in my data set and I want to delete certain study_id duplicates.
proc means data=finaldata;var v_ht_0;by intervention;run;
You should run your PROC MEANS code on unique (the output data from PROC SORT). Not finaldata
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