this chapter so far, you've learned how date and time informats
read common date and time expressions in specific forms. Now you
will see how converting date and time expressions to numeric SAS
date values can be useful, particularly for determining time
intervals or performing calculations.
Suppose you work in the billing
department of a small community hospital. It's your job to create a
SAS data set from the raw data file that is referenced by the
fileref Aprdata. A portion of the raw data file below shows data
values that represent each patient's
The data set that you create ...