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From: Al on 7 Apr 2010 11:47
Dear all:

I am trying to check the duplicity using proc freq on lab data based
on the four variables..
For some reason the value for variable count (in freq_test) is 2 ..
even though the combination of variables in the parent data set(lab)
has no duplicate values ?


proc freq data = lab noprint;
table patno * Visit* TestName*date / nocol nopercent list out =
freq_test;
run;

Any suggestions

Thanks
Al
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