I am trying to do frequency matching for case control studies. I have results from Dataset A with the frequency distribution for certain variables (Dataset A: Male 30%, Females 70% | Age>=65: 40%, Age <65: 60% | Region: West 10%, Northeast 20%, Southwest 40%, Midwest 25%, Southeast 5%). Please note that I do not have access to Dataset A and just have the frequency distribution for those 3 variables (Gender, Age, Region). I have Dataset B and I need to create a subset of dataset B which will provide the same frequency distribution for those 3 variables as Dataset A i.e. when I create the subset of Dataset B and run proc freq on age, gender and region it should give the same results as given above for dataset A.  Could you please suggest what is the best way to do that?  Thanks.   ... View more