Using Dates in Calculations
Sorting Dates
Because
SAS date values are numeric variables, you can sort them and use them
in calculations. The following example uses the data set MYLIB.TOURDATES
to extract other information about the Tradewinds Travel data.
To help determine how
frequently tours are scheduled, you can print a report with the tours
listed in chronological order. The first step is to specify the following
BY statement in a PROC SORT step to tell SAS to arrange the observations
in ascending order of the date variable DepartureDate:
by DepartureDate;
By using a VAR statement
in the following PROC PRINT step, you can list the departure date
as the first column in the report:
proc sort data=mylib.fmttourdate out=sortdate;
by DepartureDate; ...Get Step-by-Step Programming with Base SAS 9.4 now with the O’Reilly learning platform.
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