i*********e
发帖数: 783 | | g**u
发帖数: 205 | 2 Before you start working with SAS date and time functions, remember that SAS
date values
are the number of days between January 1, 1960, and a specified date. Dates
after January 1,
1960, are stored as positive numbers; dates before January 1, 1960, are
stored as negative
numbers. | i*********e
发帖数: 783 | 3 but here day is a character. Does SAS change it into numeric automatically?
Under what condition, SAS will change character into numeric automatically?
Under what condition, SAS will report an error because the type doesn't
match? | c******n
发帖数: 380 | |
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