Iteratively Processing Observations from a Data Set
So
far, you have seen examples of DATA steps that use DO loops to
generate one or more observations from one iteration of the DATA
step. Now, let's look at a DATA step that reads a data set to
compute the value of a new variable.
The
SAS data set Finance.CDRates, shown below, contains interest rates
for certificates of deposit (CDs) that are available from several
institutions.
Suppose you want to compare how
much each CD will earn at maturity with an investment of $5,000.
The DATA step below creates a new data set, Work.Compare, that
contains the added variable, Investment.
data work.compare(drop=i); ...
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