The following SAS program is submitted:
data numrecords;
infile 'file-specification';
input @1 patient $15.
relative $ 16-26 @;
if relative = 'children' then
input @54 diagnosis $15. @;
else if relative = 'parents' then
input @28 doctor $15.
clinic $ 44-53
@54 diagnosis $15. @;
input age;
run;
How many raw data records are read during each iteration of the DATA step
during execution?
A. 1
B. 2
C. 3
D. 4
麻烦高手帮忙理顺一下思路。谢谢。
The following SAS program is submitted:
data revenue;
set year_1;
var1 = mdy(1,15,1960);
run;
Which one of the following values does the variable named VAR1 contain?
A. 14
B. 15
C. 1151960
D. '1/15/1960'
为什么答案是A呢? 谢谢
[此贴子已经被作者于2007-3-22 2:58:01编辑过]