what is hierarchy flattening? : Sas-di
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% let A=3+4 what is result
proc means? proc sort? proc append? proc freq? proc print? proc content?
what is the main difference between rename and label? (don't say that they both perform the same function).
What would be the result of the following SAS function (given that 31 Dec, 2000 is Sunday)?
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How do you add a number to a macro variable?
how we can call macros with in data step?
how to remove the duplicates by proc sql?
What is slibref?
/* This is example of age caluculate wihtout to display perfect days and years in output window */ data age; retain dob "12jun2003"d now "24may2011"d; age1=now-dob; age=(now-dob)/365.25; years=int(age); days1=round((age-years)*365.25); months=month(now)-1; if days1 gt 30 and months in(12,10,8,6,4,2)then do; month1=days1/30.4375; month=int(days1/30.4375); if day(now)=1 then days=1; else days=round((month1-month)*30.4375)+1; drop days1 month1 month; end; else if days1 gt 30 and months in (1,3,5,7,9,11)then do; month1=days1/30.4375; month=int(days1/30.4375); if day(now)=1 then days=1; else days=round((month1-month) *30.4375); drop days1 month1 month; end; drop age age1; proc print data=age; format dob now date.; run;
what is SAS/Access and SAS/Connect?what are the uses?
How would you code a merge that will write the matches of both to one data set, the non-matches from the left-most data set to a second data set, and the non-matches of the right-most data set to a third data set.