[size=13.4399995803833px]Which SAS program correctly reads the data in the raw data file that is referenced by the fileref Volunteer[size=13.4399995803833px]?
[size=13.4399995803833px]Raw Data File Volunteer
1---+----10---+----20---+----30 |
ARLENE BIGGERSTAFF 19 UNC 2 |
JOSEPH CONSTANTINO 21 CLEM 2 |
MARTIN FIELDS 18 UNCG 1 |
a. | data perm.contest; infile volunteer; input FirstName $ LastName $ Age School $ Class; run; | |
b. | data perm.contest; infile volunteer; length LastName $ 11; input FirstName $ lastname $ Age School $ Class; run; | |
c. | data perm.contest; infile volunteer; input FirstName $ lastname $ Age School $ Class; length LastName $ 11; run; | |
d. | data perm.contest; infile volunteer; input FirstName $ LastName $ 11. Age School $ Class; run; |
为什么B对D不对呢? 请大神帮忙解释一下。谢谢!